Yes, even a confidence rating/meter would do the job until the off season progression. Id have no problem with that.
But really progression every 4 weeks should be the MINIMUM. As I said it's gonna be hard to have those breakout seasons with a player when they stay 50 OVR the whole year?
I want to start pre season, then play a low rated player a lot in pre season he goes good so he gets a jump. Few weeks into the season he replaces a injured player and goes very well, id like to see that shown in 4 weeks times by jumping up even more.
It just makes sense.
With how the progression is now, if you have the best roster by round 6, youre a damn good chance of winning the Super Bowl because your roster wont change, only injuries will be a factor.