There wasn’t quite as much buzz in the run-up to this year’s NBA trade deadline. But in a season featuring such tightly compressed tiers — four teams knotted with 16 losses at the top of the West, 3.5 games separating second from fifth in the East, a handful of teams in each conference trying to either get into or graduate out of play-in spots — there were still plenty of front offices committed to trying to add talent for the stretch run. And, of course, plenty more looking to balance their ledgers and bolster their draft-pick war chests in the hope that tomorrow they’ll find better things.