He's number three on my list. Jordan, a call to the Sixers to see if Noel can be had, and Monroe. Of course, still need a scoring SF.
I definitely understand where you're coming from - no doubt that Jordan and Noel would both help fill a huge hole for us on defence with their rim protection.
To be honest though, I'm still pretty 50/50 on whether I'd choose them over Monroe.
I feel like Jordan is in the absolute best possible fit scenario right now, and his game drops off significantly if he comes to Boston. He's a very limited offensive player who's entire offense pretty much comes off lobs and put-backs, so I feel like he fits best on a team that has a ton of scoring and an elite passer - two things the Clippers have that we don't. Back when we had Rondo I could really see this working, but now I'm not so sure. It's a risk I think given that he's certain to demand a max contract.
On the other hand I feel that Monroe is in the opposite scenario. He's in about the worst position he can be in right now in Detroit, playing PF alongside another big who is fairly slow AND completely lacking in offensive range. Plus he's on a team that doesn't have much history recently at developing talent (or using it properly). I think if he comes to Boston now, at 24, his game would see significant improvements while he's here and his value will go up. By the time we are ready to really make noise in 2-3 years he'll be starting to get in to his prime years, and his contract (due to the new cap) would be a major bargain.
Monroe might not fill all of our needs, but I think if we signed him we would find that 2-3 years from now he'll be the best player out of that trio, and DA would find guys to build up around him.