Elton Brand was just thrown away and lost his job to Lavoy Allen. Jeff Green missed the entire season with heart surgery. Now those two guys are gonna be key cogs on a championship team with one All-Star?
I don't like depending on Dunleavy to attack the hoop though. Obviously Irving works. Andy V getting garbage buckets as a main way to score in the paint doesn't seem reliable.
No offense, man, but I'm going to only answer questions that are based in reality.
Elton Brand was making $18 million. The team made an economic decision. Do you think Nick Young is better than Lou Williams? Because Philadelphia management made that decision, too. Real Life Dallas management chose Brendan Haywood and Lamar Odom over Tyson Chandler. The Celtics let Tony Allen and James Posey walk.
The NBA is about more than talent on the floor. Contracts matter, and to ignore them seems a tad bit disingenuous. Nobody in the world thinks Lavoy Allen is better than Elton Brand, who was an elite defender and a good scorer and rebounder.
Varejao scores in the paint. He's consistently scored around double figures there. Jeff Green is an excellent post player. Mike Dunleavy was the 11th most efficient scorer in the NBA last year. These are all facts, and no amount of advocacy is going to change those facts.
Dallas has far and away the most efficient offense in this league. I don't think it's particularly close.
No offense taken.

Brand was an expiring deal. That's a nice chip and if he is as valuable as you say he is then I think his value combined with contract status makes him more valuable then Spencer Hawes or Nick young.
Nick Young vs Lou Williams isn't that big of a deal. Both chuckers. Williams averaged 14 ppg off the bench, plays no d, and is a sg in a pg body.
Fact is they valued Hawes more. Collins only played Brand in the playoffs out of respect. He was barely seen in the second half of games and Collins was much more confident going with Allen's post defense over Brands on KG.
Also Dallas got Brand on a claim for like 2 mill. So basically no one with money wanted him either.
I completely get the economics. Expiring deals of that size can be gold when you have a team chalked full of young talent like Philly does.
You said Dunleavy attacking the hoop. I questioned that on him. He is a nice role player. Green is a risk no matter what you say. The guy hasn't played in over a year and is still unsigned for a good reason.
Varejao puts up a nice double double, but he just hasn't played in two years. Which leads me to another question that you may or may not have answered. For the regular season whats the rotation and minutes like at the Center position? Also will you double team the likes of Howard or Bynum when you play them?