I thin Denver would move McGee and Gallinari for KG and PP. They've got two other 7 footers on their roster, as well as a rebounding machine in Faried. Evan Fornier is young, but he's already shown that he has an NBA outside game (52%/39% in limited minutes), and seems to be a good athlete. They can develop him as a cheaper alternative to Gallo.
Boston gets: McGee, Gallinari, Anthony Randolph, and Jordan Hamilton
Denver gets: KG, Pierce and a pick.
Denver: Lawson, Iggy, PP, KG, Faried, with Miller, Wilson Chandler, Koufos, Mozgof, Brewer, Fornier. That team would have a puncher's chance in any playoff series, something
you can't say about the current team.
Boston gets three guys who can run the floor, and a shooter with size in Gallo(who can't hit shots this season 40/23%) and could benefit from a change of scenery. McGee is a knucklehead, but has a ton of ability and could develop into a Tyson Chandler type with Rondo setting him up near the rim. Randolph hasn't shown he can be a solid rotation guy, but is a good athlete with size.
Rondo, AB, Gallinari, Sullinger, McGee, with JT, Lee, Green, Bass and Randolph. That team would probably battle for an 8th seed, but is young and could develop. Ainge could move JT for expiring/young asset/pick.
Does Denver do this deal? Gallo failed last playoffs (13 ppg on 13 shots, shooting 38/17%) and hasn't turned it around so far this season. I could see them selling on Gallo and developing Fornier instead. Pierce can give them a coulpe years of top SF play, with Chandler in reserve. McGee is in and out of Karl's doghouse, and hasn't started a game this season.
I don't see either KG or PP wanting to play in Denver. Watching KG and Faried play together would be fun. Ditto PP and Miller, two old schoolers who know how to play. KG, Faried, PP, Iggy and Miller would be a very good close out line up in close games.