I don't know about starting the next game, the next two games should pretty much be game time/practice for as many of the team for Blackburn as possible, but I think he should get a good 25-30 mins. Jack Wilshire got game time for Arsenal and he really took his chance, I'm not saying Weiss is on the level of Wilshire but he should be give an opportunity and in the long run more experience with the first team will do him some good.