However, he only does it when he knows even if he gets beat, Perk or KG are behind him.
This is not a viable defense for that sort of conduct defensively.
I get that doing it when there is help back there is probably better than nothing, but the idea of hanging one of your bigs out to dry in what effectively becomes a miniature 2-on-1 on the paint is not particularly enticing.
I remember becoming especially aggravated about this on a couple of occasions in Game 3 against Orlando last season, when Rondo's swiping forced Perk to make a choice between giving a point guard an open floater/baby jumper in the paint, or stepping out and allowing a bounce pass for an uncontested lay-in. While that game stands out in my head, it's just one example - that's the sort of thing that's likely to happen often with that sort of swiping philosophy.
Again, glad to hear coaching staff and player are on the same page about making a change.
-sw