Jordan is in the Chandler mode. His job is to protect the rim, rebound, and score around the hoop. Those guys don't come cheap. He's 20% overpaid, but that's not unusual for bigs in the NBA.
If the Clips offer DJ and Bledsoe for KG, and Garnett is on board enough to waive his no trade, it's a no brainer. Boston gets a center to play next to Sullinger for the future, and a very valuable PG who could either be a Rondo replacement, or a Microwave type 6th man.
Unless Ainge sees the Celtics being able to get past the Heat in the playoffs, he should rebuild now. This is a good trade for a rebuilding team, and for the Clips, it gives them a better chance to win the title the next couple of years. The Clippers are going to struggle mightily in half court sets in the playoffs unless they can get a big who can shoot.