Your performance may play very little in their evaluation. We have seen the comments on here several times that sometimes adversity in front of coaches and scouts is a good thing. They want to see how you react when you are not at your best too.
PC had seen son pitch in Atlanta and sent RC to watch. Son came in to close and ended up giving up the one run lead. Winning run on third with two outs. Are you going to crumble as you just let the other team back in the game or are you going to battle to keep it tied?