Oh, crap, I thought it wasn't necessary to specifically point out that I wasn't comparing a small minute sub like Williams to KT or Amare. I made the comparison to Skita - and, strangely enough, that is what I meant. Now if I was pumping Aaron to be the starting PF or C instead of a physically strong 10th man, you'd have a point. At the time we got Skita and could have pursued Williams, Amare and Grant were out so we were shoring up our frontcourt, don't you remember?
As far as the general issue of strength of our players, I assumed everyone was aware that it is low at every position. I don't think we have anyone that is above average in strength for their position in the NBA. Marion might be slightly above average for SF's but even when everyone is healthy he plays a lot of PF and he well below average there. Moreover he avoids using his strength whenever possible. Tim Thomas is above average for SF, but he doesn't play that position on the Suns. KT is tough and smart but among C's he is lucky to be average in strength. Same story with Bell, tough and cagey but below average for SG and SF, which he plays a fair amount.
Of course, I was very glad when BC got KT - it was the kind of thing I'd been hoping he'd do for years. Still it was only one step and KT is nearing the end of his career and he's not strong enough to give us the balance of power in the frontcourt against many teams - if any. Bell was another good step, IMO - signing someone who is noted for their defense but he is undersized for his position, too. So while there was some progress in the directions I've long hoped the Suns would move we are still awfully weak physically.
The point of talking about how they fill out the end of bench is that choosing Skita over Williams shows the underlying mindset - finesse and long range shooting trumps muscle, even when its evident we need the latter.