u/CrashBandicoot2

Hilariously unlikely scenario, I know, but say the Bears and Chiefs swap QB1s and both Odunze and Mahomes want to wear 15 on the Bears, but refuse to work it out amongst each other like I normally hear players do.

Can the team just force Odunze to change his number? Or does the player currently wearing the number for the team have like squatters rights to it until they're cut or traded?

I would think that the team can, but I've just never heard of it happening. I always hear it go that either the new player just takes a new number or a deal is brokered where the new player pays off the returning player for it