CBSSports.com has learned that the Lakers have engaged in preliminary trade discussions with an unlikely trade partner regarding Howard: their fierce rival, the Boston Celtics. The centerpieces of the possible deal, which hasn't gained any traction, would be Howard and Rajon Rondo...
Since the league source familiar with the discussions characterized them as preliminary, it's possible that the talks could be tabled until after the season. In that case, Howard would have to agree to a sign-and-trade to the Celtics that would only yield him a four-year deal as opposed to the five years the Lakers could offer him (or the Celtics, if he were traded there by Feb. 21 and subsequently re-signed). The Celtics could only acquire Howard in a sign-and-trade if they eschewed their full mid-level and remained below the so-called luxury-tax apron, a threshold $4 million above the tax line that was added in the 2011 collective bargaining agreement.

http://www.cbssports.com/nba/story/2171 ... eal-howard
http://www.sbnation.com/nba/2013/2/15/3 ... ajon-rondo
Stay tuned.