Con: Size
Rose (6-3, 190 pounds) and Jennings (6-1, 170 pounds) will struggle against a bigger backcourt. If one were matched up against a guard who could post up, it’d be an absolute mismatch.
The two have enough trouble guarding opposing point guards on a regular basis. It’s a classic case of giving up some size to gain a little more offense. That’s the risk of going small.