They won't give either one away, but they'll need to impress to earn minutes outside of garbage time (barring injuries).
Last year's most common lineup:
TJ
Stauskas/Henderson
Cov
Dario
Holmes
The only likely returning starter is Cov:
Fultz/Bayless/TJ
Redick/Stauskas/Furkan
Cov/TLC/Anderson
Simmons/Dario(Dario should get plenty of minutes)/Johnson
Embiid/Holmes/Okafor
It's in many ways a brand new team. If they play well together, based on talent and fit, they should win close to 50 games. Even with rookie growing pains, injuries, and adjustments defensively they should win 40 or so and make the playoffs.