Conversation so far:
Did Bert Bell teach at Penn?
Bert Bell joined John Heisman's staff at Penn as an assistant coach in 1920.
What did Bert Bell coach or teach?
Football
How long did Bert Bell teach?
Several years
Did Bert Bell have any scandals while teaching?
Bert Bell was well regarded as a football coach.
What did Bert Bell do after teaching?
In 1928, Bert Bell tendered his resignation at Penn. Bert Bell was then an employee of the Ritz-Carlton in Philadelphia.
How long was Bert Bell enlisted?
1 Year
What branch of the military was Bert Bell in?
U.S Army
Anything interesting about Bert Bell's time at Penn?
In 1928, Bert Bell tendered his resignation at Penn in protest over the emphasis of in-season scrimmages during practices by Lud Wray, a fellow assistant coach.
how did Bert Bell's resignation affect him?
Bert Bell's resignation was accommodated prior to the start of the 1929 season.

Question: How was his seasons while he was there?
Self-contained rewrite: How were Bert Bell's seasons while he was at Penn University?