Why Mr. Shai Glazer?
I simply don't like Cooper's fit on the Mavs as they are currently consstructed despite his talent, and parting from him for Dylan Harper and KD guarentees a championship window now, as well as giving them a similar pathway to compete after the proposed AD, Kyrie and KD timeline comes to an end.
As amazing as Cooper Flagg is, Dylan Harper is also a VERY good prospect who can provide a much nicer fit off ball opposed to Cooper's need to have the ball to calm worries surrounding his offensive bag. The ceiling of Harper is lower, yes, but not by much. Cooper has no guarentee to be a top 5 player in the NBA, which seems to be the consensus peak for him. Harper can easily be a top 20 player mininum and when you factor in the Mav's ability to make Finals-quality rosters, despite recent stupid decisions, Harper's ceiling can lead them to constant contention.
Cooper at the 3 with, besides an INJURED Kyrie and a questionable Klay, streaky shooters around him sounds disatrourous for the short term and maximising this current roster, the one which is burdened with carrying the Mav's post Luka.
Harper, Kyrie, KD, AD and DLivley gets the most out of their current roster constuctoin as well as giving them an almost guarenteed superstar to build around in the future, as already mentioned. Them getting a further 2 FRPs is simply a bonus on top of that.
Sure, the big three are old and wil be susectible to injuries: but other pieces such as Klay, Christie, Naji Marshal and Jaden Hardy give them serious quality in depth that make them seem more like Houston than the Suns.
For the Spurs, this is absoloutley a no brainer. I am not tearing down Cooper Flagg as a prospect or a player, but people see him as a Wemby-like prospect, when he's not even a Zion-like prospect.
That said, he's fantastic and very young, and if things go his way he will be a top 10 player in the NBA by his prime and the Batman to San Antonio's Superman.
His fit within the Spurs roster just makes more sense as a PF. Next to Wemby who can anchor the defence, allowing Coop to defend the weak side and just roam inside the arc and float towards the perimeter to guard that as well, as he's a very versatile defender.
Another thing about the Spur's projeted starting 5 within this hypothetical trade is both the high end defence and offence they can generate from almost day one; as Fox is a good defender relative to more offense leaning guards, Castle is a great defender, they have several wings that can defend very nicely and obviously the 21 year old alien who should now have 2 DPOYs.
Offensively Castle will be given much better looks from screens and the corners, Fox will be able to apply heavy pressure to the rim instead of settling for jumpshots you'd prefer him not to, like he was during his last stretch in Sacramento.
They'll STILL have Julian Champagnie, Devin Vassel, Harrison Barnes and Keldon Johnson; all capable of generating good offense, whether through shot creation or play-finishing through open looks from jumpshots or drives to the lane.
The Spurs still have a lot of wiggle room regarding this trade, whether it's from the SRPs they have or from the contracts they have that can be used to trade.
The Suns may not to look to trade away DBook until 2026 meaning all they can do is fill the roster in ways that at least force him to be aggresive when it comes to his usually elite scoring.
Klay allows the Suns to move off from Grayson Allen's contract, one that hasn't looked faveorable this season, while adding PJ Wasington and Gafford gives Phoenix some dependable bigs instead of hoping Ryan Dunn can play as a small 4man and find his shot.
Jeremy Sochan is a player I'm not entirely sure about, but him, the 14th pick and the 2029 LAL pick is a nice return on top of 3 very capable NBA players (two of which are on expiring deals come 2026).