It really just boils down to how much Bailey’s shot will fall. If he’s a dead eye, then he’s going to be a much more coveted and valuable player than a ball-dominant guard without elite shooting or playmaking.
Harper’s development has a say in this too, obviously. But the best version of Bailey is a more useful player than the best version of Harper.
Harper's play-making would look a lot more elite if Bailey was able to convert, which he really didn't. The rest of the team was garbage shooting .427/.321 excluding Harper/Bailey. True 2-man show, but Harper carried the load and was (much) better.
Bailey 6'7.5", 202.8lbs, 7'0.5" WS, 8'11" SR. 10.97 Agility, 2.78 Shuttle, 3.12 Sprint, 27.5 Vert, 34.5 Max Vert. 17.6/7.2/1.3/1/1.3 on .460/.346/.692 .with a .536 TS% (below avg), 24.3% FTr (avg) and 11.0% TOV. 4.5 BPM, .112 WS/40.
Harper 6'4.5", 213.2lbs, 6'10.5" WS, 8'6" SR. 11.07 Agility, 3.05 Shuttle, 3.16 Sprint, 30.5 Vert, 36.5 Max Vert. 19.4/4.6/4/1.4/0.6 on .484/.333/.750 with a .587 TS% (elite for a guard), 41.9% FTr (elite) and 12.7% TOV. 9.2 BPM, .166 WS/40.
Harper will always be a big PG and in line for SG. Bailey is basically in line at SF and small for PF. Even if Bailey is a LT guard I'm still team Harper.
Close athletically but Bailey has the edge. However one took the bulk of the pressure and the other performed worse as the secondary player. One gets to the line at a exceptional rate and the other is average.
One always handled the ball with the D focus on him, still produced elite efficiency, and turned in over nearly the same with a 3.5X AST% while the other was below avg efficiency with a very negative A/TO. Obiv not apples to oranges, Bailey should be a better rebounder and maybe a more versatile D-fender but personally I'd bet on Harper's professionalism/mentality/growth way over Bailey's.