As an englishman living in the US I am familiar with both systems.
The biggest difference stems from the fact that most US sports are a closed system. For example, if you don't like the way the NFL does things there is no other league of comparable quality to which you can run to.
That is certainly not true for the MLS since there are many worldwide leagues. However, much of the structure (drafts/trades/etc) were mirrored on other US sports.
The difference in transfers between the football model and the US Sports model stems from the above difference. In the football model, of your team wants to acquire a player, it's a two step process. Negotiate with the team currently holding the players contact in order to buy out that contract, and then negotiate a new contract with the player. If either step fails then the player stays put.
In US sports, there is only one step, negotiate with the owning club. If you offer enough (either money, or usually a player going in the other direction) then the player's contract is simply transferred to your club, you do not need to negotiate a new contract with the player, and the player (unless they have a no-trade clause) cannot object to the move.
This is allowed, essentially, because US sports have an anti-trust exemption from the US government.
MLS has a problem in that it is a slave to two masters. It has to try to win over the US public, but it also wants to be taken seriously by the world footballing community. My opinion is that they would be better off trying for the later, rather than the former.
The biggest difference stems from the fact that most US sports are a closed system. For example, if you don't like the way the NFL does things there is no other league of comparable quality to which you can run to.
That is certainly not true for the MLS since there are many worldwide leagues. However, much of the structure (drafts/trades/etc) were mirrored on other US sports.
The difference in transfers between the football model and the US Sports model stems from the above difference. In the football model, of your team wants to acquire a player, it's a two step process. Negotiate with the team currently holding the players contact in order to buy out that contract, and then negotiate a new contract with the player. If either step fails then the player stays put.
In US sports, there is only one step, negotiate with the owning club. If you offer enough (either money, or usually a player going in the other direction) then the player's contract is simply transferred to your club, you do not need to negotiate a new contract with the player, and the player (unless they have a no-trade clause) cannot object to the move.
This is allowed, essentially, because US sports have an anti-trust exemption from the US government.
MLS has a problem in that it is a slave to two masters. It has to try to win over the US public, but it also wants to be taken seriously by the world footballing community. My opinion is that they would be better off trying for the later, rather than the former.