As a Celtics fan, this is not ideal. This is the trade I think they make:
Raptors trade: Patterson, Ross, and Cabloco
Suns trade: Markieff and Tucker
This gives the Suns a stretch four to replace 75% of good Markieff Morris. It also gives them two interesting prospects to build around with Len, Tucker, Booker, Bledsoe, and Knight.
The Raptors finally get a scoring stretch 4. They also double down on Lowry's strength and toughness on defense by adding Tucker on the Wing.
Valancunas-Markieff-Carroll-DeRozan-Lowry, with Tucker, Joseph, Scola, Biyombo, Nogueira, and Wright off the bench.
That is a tough matchup. That is a team with the versatility to play anyone. Honestly, if that team could gel well, they could beat the Cavs in a seven game series because of their matchup ability and versatility.
And it would improve an Eastern Conference rival, which is bad for the Celtics.
Edit: Source of rumor is ESPN
http://espn.go.com/blog/nba/rumors/post/_/id/36855/nba-rumor-roundup-205
I'd be really surprised if TOR moved Ross, whom they view as the security blanket if DeRozan bolts for a max deal elsewhere this coming summer, and Caboclo, whom they've called the stealth superstar-in-the-making of the 2014 draft class.
Markieff Morris is the best player in this trade, easily, and he's on a bargain contract for 3 more years after this one.
Tucker has a good portion of his contract non-guaranteed next season.
Ross begins making $10 million per year after this season, so for his production, that contract is a bit questionable to retain.
Bruno, while only 20-years old, doesn't seem to be progressing all that well from what I've seen. I could be wrong.
So I don't view those two assets as untouchable as you seem to insinuate, particularly if they land Morris who's much better than anyone involved here, and on a very good contract.
The net of this is that you get the best player in the lot, and gain salary cap flexibility and cap space. Seems like a no-brainer from where I stand with the assumption that you're willing to deal with whatever Morris' misgivings have been this year (legal problems, fight with Suns management who he seems to think did him wrong).