Just an FYI
The regular All-Star Athletes chemistry applies to ALL players in your lineup.
It will require most of the 98’s to get all the way to Tier 8 for the +1 SPD (40 chems), but you can easily get +1 ACC for everyone in your lineup at Tier 1 (5 chems).
The 89’s and 91’s have the chems if you just want to use fillers to get the ACC boost.