First of all, I can remember Saint Coughlin and Perry Fewell making players do push-ups when they fucked up.
Second... they're making them do... CONDITIONING? Please no... anything but that! You can't make a professional athlete do conditioning! They're GROWN MEN! What's next, conditioning for the armed forces recruits when they fuck up in basic?
Third, as someone who regularly has to motivate large groups of kids I can tell you... you can always start out "too tough" and ease up. If you try starting off easy and then wanna tighten the ship... good fucking luck with that.
And finally, fuck Shannon Sharpe, Geoff Schwarz and whoever the other guys were. They're just trying to get clicks.