"We fixed many things. The mentality of the team, just stepping out, good concentration, being focused," Rosales told reporters after the DC match. "We’re a little disappointed. We were playing against the top team in the other conference and we still are disappointed because we just got one point. We should take the three.
"The chances that we generated seems like it was enough to score one goal, but we just have to be positive for the next game and to try to be more calm in the last part of the field. But with this concentration, with this aggressiveness, we can move forward."
The hours have passed since Saturday's match but with the team at 411 scoreless minutes in over nine full halfs of football, patience is wearing thin for many.
So with time to reflect, just why is it proving so difficult for the Whitecaps to find the back of the net? Especially in light of the excellent creative work being produced by the likes of Rosales and Pedro Morales.
"I dunno. Probably we should create more chances for them but it's also that we're a team and everybody is looking to have a best game," Rosales told reporters at training on Monday.
And that's just the thing, everyone has their theories but no-one can put their finger on just why there is a goal drought now from players that were scoring for fun a few months ago. That makes finding the solution hard, apart from actually buying some new strikers, but Rosales doesn't see the problem as being a lack of effort.
"This team has been working hard to get to get the result, to get the points, to play well and be the better team," Rosales added. "But sometimes the things don't go in your favour and you have to accept it but also keep working, keep moving forward and be the optimist for the next game all the time, and positive."
With the pressure mounting on the young strikers, they have often appeared a little bit afraid to make mistakes, then end up making them anyway. The runs aren't there that are needed and often the right passes aren't either. Is it a case that they are playing too tense?
"Probably," Rosales feels. "They are trying hard and this is what we want. That is the only way. We can talk with them and let them know they have our full support But it's not just the players that play as a forward, we, as a team, the defenders, the middle and the attackers, we have to be a team and a solution for that kind of problem. Not just them because they have to finish it. I believe and I'm optimistic that we're going to get there and the goal will come."
It's like trying to roll that elusive number to finally bring to a close what has felt like a never ending game of Trivial Pursuit. That one or two just won't come and then when the chance does come, you get the wrong answer at the end of it.
One thing that has been a consensus of opinion from the Whitecaps players and management though is that the attackers need to shoot more. It's tied in with the fear and tenseness, but enough with the slow build ups and passing it around, just take a shot, or as Robinson described it on Saturday, "buy a lottery ticket". No ticket, no prize.
"We just need to step up and finish the plays earlier," Rosales admitted. "[Don't] to make the best goal, just score. They're going to be the same, if you score a beautiful or a normal one. At this moment we just have to try to score and just have to try to control the game. Don't be running all over the place for 90 minutes. Try to control the game a little bit more but with a positive result, getting goals.
"In the last two games, in the first half, we could have scored a goal and controlled the game but we didn't. We are that close to get into the position that we want and just being the aggressive team that we want."
But could it maybe be the case that the Whitecaps' current crop of strikers simply aren't of MLS quality?
That was a question put to a lot of the senior players at training on Monday. They all answered pretty much the same, that they've shown they can do it, just not consistently enough. Rosales has been around, he's seen a lot of strikers, he's seen goal droughts and suffered from them himself, but his faith remains with those at Vancouver right now.
"Of course [they are good enough]. They can score as much goals as we need, but it is a moment that every single striker or people playing in that position has. One time in a year or one time in their career they're probably not getting the confidence that they need. They're working hard, I can see that they are mad or disappointed about it but they keep working, they keep searching, they keep asking for the ball, so this is what we want.
"We want some guys that just ask for the ball and don't have fear to get the ball and lose it because that's how you're going to get better. Just try to ask for the ball, the play with us, to combine and to get the chances and to create the chances for the goals. It's going to come, for sure. I just try to work with them to get there."
And he can most certainly help, as all the veterans in the squad can at this tricky time.
Marc Weber tweeted something out during Saturday's game, and we chatted about it postgame, that was very evident. Rosales may not have been here for very long at all, but he plays with a passion and an attitude that makes you feel that his whole family grew up being Whitecaps supporters and the club is in his blood.
It's just the way that he, and others in MLS, always play. And it's fantastic to see, even when it's not your team and you're watching a player as committed as that. It's something that often feels lacking in some of the younger players, which is somewhat explainable but no less frustrating.
Can Rosales share some of that passion as well as football intelligence to his new teammates? Who knows, but he took some time to share his philosophy with media today.
"I believe you stepping out on the field and being an example of how to play or how to react or how to see the game, is the best way for the others to learn. This is something that is working. I prefer to tell them that they have to work hard, that it's a privilege to be a soccer player. Stepping out on the field is something that you have to enjoy, it's something you have to work on to get your best quality in soccer.
"This is what I did my whole career, not just now because we need something like that. All my career I've been working very hard and it's the way that's going to give you a little bit more at my level and it's going to push me every time I need it. That kind of concentration gives you an extra focus to play and just taking the right decision all the time. It is the way. Just working hard, concentration and the chance to be an example of how to do it, that is the way."
After Saturday's game, Rosales made reference to wishing he had more time in Vancouver to do that work and to help impart knowledge with the younger players and get a better understanding of playing with all his new teammates.
"I just feel sorry that we just have eight games left," Rosales said post DC. "I wish I could be here before and just train with them, take time with them, to know each other much better, but it is what it is and I’m going to work very hard to be part of the team, and to try and to help the team to rise up."
Many took that to mean that Rosales' trade to Vancouver was just going to see him here until the end of the season, but if Carl Robinson gets his way that won't be the case and the Argentine will be here for some time to come.
"I spoke to Mauro the day he arrived and I said to him, don't think of this as a short term fix because I knew a lot about Mauro and I said that in all references that I had of him, they said he was outstanding," Robinson told us on Monday. "He's shown in a short period of time that his play has been outstanding and the way he is with young players has been outstanding.
"If there's a deal that we can do next year, if he continues to remain fit and continues to have an influence on this team and squad moving forward, then he's someone that I would certainly consider keeping because I think he's very, very valuable.
"Having said that, we're cap constrained as everyone knows, so if we can try and get something tied up with Mauro, at the end of the year or start of next year, I'd love to try and keep him here."