endurance and energy

I am running a quick test right now, and I recall running a similar test (with 93) many years ago. That is, I set one team to all players having zero endurance in an effort to increase line changes, and force the computer to use the 2nd and checking lines more. Honestly I'm saying very little difference, if any. It seems maybe the zero endurance team is making changes on the fly a bit sooner than the regular team, but the differences are trivial at best. Even when they're a bit tired, the computer seems to just keep plugging both line 1s out there over and over.

Any thoughts on this? Curious if there's another way to cause BOTH teams to switch up the lines more. My goal would be to incorporate all 3 lines pretty much every period on 5 minute periods or more. I realize as a human controlled team I can change as often as I want.