Read a few things over the last couple of days...
Apparently the team meeting Tito called in Toronto was because of a rift in the clubhouse. There were a small, vocal group who supported Lackey. It was basically Tek and a couple of other pitchers. The rest of the team, ie the fielders, didn't appreciate the way Lackey hung them out to dry whenever there was even a base hit. This goes back to what Tito said was "energy being spent but not helping us win" or some such phrase.
Ownership really, really wanted to make a splash two winters ago and pitching was where there was room. Theo gave the front office plenty of reasons why Lackey could be a bad fit but he was basically told he had to go sign this guy. Apparently it didn't matter who was the best pitcher available, they were going to sign him. If this is true, how many other guys did Theo have the proverbial gun to his head to sign?
Tito did not hear from ownership once during the collapse. Not a single word. No support, no "get your arse in gear". Nothing.
It looks like Tito may have just been sick of all of the drama. Now with Tito gone, Theo, who shared the brunt of fan angst over the last 8 years or so, is alone against ownership. I would look for Theo to be packing some boxes in the next day or two as well.