Ainge usually does a decent job, I think, of getting average to above average assets at his draft position.
My biggest criticism of him right now is that over the past two years he's shown little ability to play the market by trading down. Rozier was projected as a late 1st and Ainge reached for him at #16. Couldn't he have traded down and grabbed a piece? Brown was projected a couple spots later, but Ainge just grabbed him and moved on. The dude we took at #16 this year was projected in the 2nd round...
But usually everyone falls in love with these guys regardless so I'm not totally giving up hope.