Contracts Don't let the players contracts expire. You need to resign players immiedately. If you do not, in January teams will offer your player(s) pre-contracts and sign them up for nothing.
Free Players In January,March and April, players will have two or three months left on their contracts. You need to offer them a contract without money. If you have the wages they will accept. You should watch players who go on loan. After the loan is up, offer them a contract before their actual team does. Cisse from Liverpool is on loan to Marseille. He will be free to transfer from Liverpool. Also, Walcott will get loaned out in January. You need to offer him a contract after the loan.