As a front office tries to create an offseason plan to help improve a franchise, there can come a time when the budget gets in the way. They might want to sign X player to fill Y hole, but in order do so, they have to get rid of Z amount of money to free up the necessary space. That move might be nontendering players, it might outright releasing them (that still means you have to pay ‘em), but it usually means they have to trade them. Getting someone else to pay that player while also getting something in return feels like the best move for all involved.