Line changes in EASHL

What if a system was in place that your players stamina would drop and take longer to recover. At some point you have to skate to the bench for a change. You could have 4 different builds or just keep rolling the same. Captain can choose lines at face off..

I can see this system making the game more realistic. Limiting the up and down action and having to manage stamina make line changes at correct time ect..

I can also see how this would be a nightmare to do with drops and people off mic though.

Thoughts?