#1: Jaden Ivey
I like Ivey and think he's going to be a very good player in this league, but he's the most tradable of the Core Four.
This isn't so much a slight on Ivey, more about the position he plays and his fit with the other three, but specifically Cade Cunningham.
Ivey is not a good defender, though he has improved marginally this season, which isn't ideal when Cade isn't great either. Cade is at least more versatile and can defend bigger players while Ivey is more limited in who he can guard.
Ivey is not a good 3-point shooter at 31 percent, and while he will likely improve, he's always going to be more of a slasher and guy who uses his elite speed to get to the rim. That can certainly work with Cade, and we've seen it work at times, but can it work with only one real 3-point threat on the floor?
This is the dilemma of Core Four 2.0, as it's hard to envision how it works unless at least one of them becomes an above-average 3-point shooter. That could be Cade, could be Ivey, could be both, could be neither.
A longer, 3-and-D type (is vintage Klay Thompson available?) is a better fit and would potentially put two good shooters around Cade instead of one.
The Detroit Pistons are unlikely to trade any of these players at the trade deadline and they shouldn't, as we haven't seen enough of them together and all of them still too young to fully evaluate.
But the Pistons can't be too stubborn if evidence continues to mount that they are not a great fit, as the worst thing they can do is overvalue their own guys and build around a shaky foundation.