As Danny Ainge downplayed the possibility the Celtics will be involved in a transaction before tomorrow’s NBA trade deadline, general managers and personnel people around the league are saying quite the opposite. They’ll be stunned if the Celts don’t make a deal of some sort. “They’re too active,” said one. “They’ve been putting a lot of different things out there, and you’d have to think at least one of them is going to come through.” If the Celtics do pull off a trade, it’s likely something beyond what’s already in the public domain, and many of those talks were dead on arrival. For example, the Celts did have a brief discussion with the Lakers, but word is Mitch Kupchak said flatly they are not going to deal Dwight Howard, stating that he is part of their future. It’s possible that outlook could change, but with Rajon Rondo rehabbing from ACL surgery, the Celts wouldn’t have enough to get in on such talks. The Clippers remain a good target, with Eric Bledsoe an intriguing talent. “An awesome athlete, but not really a pure point guard,” said one personnel guy. “He could be a Russell Westbrook type if he keeps developing.” But while Kevin Garnett might just push the Clips over the top, the franchise is said to be still reluctant to take on his contract. The Hawks’ Josh Smith talk seems a bit of a mystery from the Celtics’ standpoint. To begin with, it would be hard to put together the right package to get him. And it’s even more doubtful they would be willing to part with the kind of things Atlanta is looking for. Start with the fact Smith almost certainly won’t be signing a three-year extension right after a trade when he can wait until summer and get a longer deal as a free agent. So there’s no guarantee a team trading for him has him beyond the next few months. Then there are the questions of just how much Smith is worth relative to what he can contribute.