The Shots gaffer was in the stands watching the game which finished 6-5 after the young side had taken a 5-2 lead that included a brace from Charlie Walker.
Despite witnessing the side, which started with seven players who were 17 or under, lose in such spectacular fashion, the boss will be impressed with some of the performances he saw, especially that of Luca Wrightman.
And Collier believes the youngsters will have put themselves firmly in the future plans of Waddock after their performance at Bashley Park.
He told Aldershot Town's official club website: "I think Gary can see that we're trying to go in the right direction and he can see that there are players there with huge potential who at any given time in the future he can call upon and trust them to go into the first team squad.
"They can all handle the football - tonight was a great experience for them and I told them before the game that it is about opportunities and tonight was their opportunity to get themselves into Gary Waddock's thoughts and to do something that will live long in his memory.
"That might be a goal, a bit of skill or it could be what they do in and out of possession and I think they did that tonight.
"Going forward he knows we have a squad of players here that, potentially, in a year's time could be ready to go into the first team.
"We said to them before that tonight was the opportunity to get yourself into people's minds and hopefully the fans will go away and say 'ok, we're starting to build something within the academy that could potentially start producing players for the football club.'"