Ainge has been good at tapping oddities and fringes (high schoolers for Jefferson and Perk, an a-hole like Rondo, bilking a Russian rube in the Brooklyn deal, getting KG when the Minnesota owner just wanted him gone at any cost, snagging borderline NBA players with later picks (i.e. Gomes), etc...), but he's been very average in normal situations where he's got to do things straight up, which is how you end up with the Fab Melos of the world, and how you end up destroying a potential dynasty by trading away Kendrick Perkins.