When a new manager takes over, fringe players feel a renewed sense of hope that they can turn their fortunes around.
The same can be said for first-team members who have been playing poorly, much like Shkodran Mustafi at Arsenal.
The defender suffered a miserable end to the season as he was personally at fault for a handful of goals conceded.
Unsurprisingly, plenty of Arsenal fans called for the German World Cup winner to be axed from the squad.
Now that Unai Emery has replaced Arsene Wenger at the helm of the Emirates, the slate could potentially be wiped clean.
Mustafi will have to prove to the Spaniard that he is deserving of a centre-back spot, and plenty will be dependent on whether or not Emery dips into the market to buy a new defender.
The former Paris Saint-Germain boss regularly plays with a back four, but Mustafi has work to do to impress.
Interestingly, even though many Arsenal fans have been heavily critical of the German, our poll suggests that there is some backing for the under-fire defender.