I have nothing personal against John Lackey and I truly wish him and his wife the best. I also don't blame him or any other player for their contract, who wouldn't take the deals these guys are getting? I also remember people ripping Jason Bay and Dustin Pedroia for taking time off for the birth of their children, and I thought that was ridiculous. Of course players should be allowed to put their families above the team, after all, they get paid so they can feed their families in the first place.
Still, no matter the circumstance, I think Lackey needs to be dealt with. If the issues are physical, let him recover. If his wife's cancer truly is hurting his performance the way it is, then he needs time off, and I won't hold that against him. If a move to the bullpen is best, then move him to the bullpen. All I know is Lackey starting every 5 days is hurting this team, and going into next year, this needs to be dealt with in a way that works for both the team and player.