Personally, I think it's close, but I would say yes to uptempo. Like so many Sim teams, they're playing their starters 30+ mins, and uptempo gives you a chance to crush them with fatigue in the second half. I think you'll force a lot of TO's.
On the flip side, I suspect you're going to commit a lot of TO's too, because your offense IQ's are relatively weak (even your seniors are in the B / B+ range). You're also going to commit fouls because you don't have very much team speed or stamina and you're playing press. To be honest, if I were you I'd consider switching from press to something else when all those juniors graduate after next year - or be ready to recruit guys who have a lot more speed and stamina than your current players.