Franchise squads are not frozen between auctions. Teams can trade players in defined windows, and the rules governing those trades explain why so few of them happen.
The contract travels with the player
When a player is traded, his existing contract value generally moves to the new team, which must absorb that amount within its remaining purse.
A team with little unspent money therefore cannot accept an expensive player regardless of how much it wants him.
This is the central constraint, and it is why trades cluster around players whose contracts are modest relative to their contribution. Value for money matters more here than raw quality.
Consent gives the player a veto
A trade normally requires the player's agreement, since he is being moved between employers under an existing contract.
Players consider location, role and likely playing time, and a settled performer at a strong team has little reason to accept a move.
The requirement makes trades a negotiation among three parties rather than two, which slows them considerably. Any of the three can end the discussion at any point.
Cash can move alongside the player
Trades may involve a payment between franchises as well as an exchange of players, which lets teams bridge a gap in value.
Where a contract exceeds what the receiving team can carry, an arrangement between the clubs can make the transfer workable.
Rules on how much may change hands and how it is treated against the purse determine what is actually possible in a given window. The accounting treatment of that cash is as important as the amount.
Windows are narrow and purposeful
Trading is permitted only during defined periods, typically after a season ends and again shortly before the next begins.
Restricting the windows prevents squads shifting during the tournament, which would undermine both competitive integrity and the value of the auction. A squad assembled by bidding should not be quietly redrawn afterwards.
The short windows also concentrate negotiation, since teams must identify targets and secure agreement within a matter of weeks. Preparation happens long before the window opens.
Trades serve squad balance rather than star acquisition
Because the constraints are tight, most trades involve players who are surplus in one squad and fill a specific gap in another.
A team heavy with domestic seamers and short of a finisher can address both problems in a single exchange without spending at auction.
The mechanism therefore functions as a correction tool between auctions rather than as an alternative route to building a squad. The auction remains where teams are actually made.
