To get back to the main point, most coaches have bad seasons in which firing them after one would in hindsight, have been a bad move. The 76'ers coach had three or four years in a row in which they won 28 games or less and look at them now. Mr. Davis had a few terrible years sprinkled in among decent to good seasons. If you want to use football, Hayden and Kirk had lousy seasons only to eventually turn it around and have some memorable seasons. To think what would have could have happened to Hayden if there was social media back then is kinda scary.
Fran can turn it around and he should get at least another year to do so. If we're terrible again next season all possibilities for his future should be on the table, but to see the vultures start circling after one terrible season isn't a good look.