Considering that the Celts don't have a back up to Rondo it would be a smart move. The kid is either going to be a good back up or a really good starter.
Its not like they have a ton of money to spend this off season. I think only a MLE?
So what would you rather have a MLE pg and a Rookie project big, or MLE center with a rookie project pg. PG's that high on the draft board tend to do better the first season then bigs.
Plus if he excels, then you have a great problem of deciding on Shroeder or Rondo in the next contracts.