Probably good to remember that Young was a mid 1st round pick, one of a great many the Celts have had over the last few years. Ainge took a shot in the dark on a super-young, super-raw prospect. It looks like if he ever becomes an NBA player, it won't be in a Celtics uniform. Oh well.
As long as a couple of the guys Ainge has taken in a similar range -- Rozier, Hunter, Mickey, Guerschon, Zizic -- turn into reliable contributors, the Celtics will be in good shape.