I thought it'd be fun if, when you have to take a walkon, you got to have some kind of a tryout.
Say, for example, the last cycle runs and you're left with 2 walk-on spots. From the time that last cycle ran to the time of your first exhibition game, you'd get a grid of 5 or so walk-ons who tried out for your team. Maybe you'd only get to see 50% of their categories and none of their potential or something along those lines and you'd get to pick between those players.
There wouldn't ever be a starter-caliber player in there, but you could potentially land a decent role player rather than just taking the luck of the draw and wind up with a 191 OVR kid.
I'm sure it won't happen - but seems like a fun idea.