The Bees' shattered players had their awards dinner on Sunday night, just 24 hours after their agonising last-minute defeat by Doncaster which secured promotion for Rovers and condemned Brentford to the play-offs.
But Rosler's side travel on Swindon on Saturday for the first leg having put the drama of the previous weekend, when Marcello Trotta missed the last-gasp penalty which would have sent Brentford into the Championship, firmly behind them.
"After the game I wasn't sure having our after-season ball was the right thing to do, I wondered how the players would respond," said Rosler.
"But after what happened on Saturday it was the best thing that could have happened. Everyone got together; players, supporters, relatives. It was a very good way to turn things around.
"On Monday we started to train, Tuesday's training was very good and now we are back to normal.
"If we had an established squad of players aged 28-35 it might have been different but we have an age group of around 22 and 23, so they are young, they forget quickly and they are hungry for success.
"That is the nature of this squad and that makes it easier to kick on again."
Fulham loanee Trotta, 19, was the fall guy after insisting he took the spot-kick ahead of designated penalty-taker Kevin O'Connor, only to blast it against the crossbar before Rovers broke to the other end and James Coppinger slid in the winner.
But Rosler added: "There are no issues with Marcello, with Kevin and with the whole squad. I have spoken to them both. We are taking the responsibility together and Marcello is in very fine form."