Shorter legs need shorter crank arms, and longer-levered riders like Mathieu van der Poel —just over six feet tall with a long inseam—are unlikely to make the switch.

The level of talent it takes to fold abnormally long arms up into the body until needed is unreal. I'm not sure if this is an every Ragdoll kitten thing or if this baby boy was truly a gift from ...

Long arms help offensive tackles prevent speedy edge rushers from quickly getting around them and getting to the quarterback. You can certainly overcome that, as Campbell mostly did at LSU, but ...