I've been thinking about the discussion in this thread, and my answer to this question is no.
Even if you think his drafting is average Ainge is one of the best in accumulating assets or simply draft picks. So it gives him more chances to land solid players as drafting can be an inexact science (as pointed out several times in this thread). I mean seriously if you look at Ainge's entire tenure or even since 2008 I don't think there is another team that has had more draft picks. He has landed solid players in the teens in Bradley and KO, made use out of Sully in recent years. I'm hoping for more from Smart, and a case can be made we should have drafted Randle (but he didn't even want to work out for us), so I can live with the pick. The book obviously has yet to be written about Brown.
We have a youngish team, lots of flexibility, should win around 50 games, and still have 4 future first rounders coming from other teams (2 Nets picks, Grizzlies, and Clippers).
I will also say it may be premature to write the final book on our recent draftees (I'm not even sure Young is of drinking age yet although I will admit I'm not crazy about his game) as we don't know how this will all play out with our final roster, or what more improvements they will make to their game. But if we have to cut 1 or 2 of our recent draftees from the second half of the first round it's not the end of the world. I might think a little differently if we had won 25 games last year, but we don't have that type of team. It's a good problem to have that not many teams can share, and we still have a great amount of assets to make our team even better.