Selling players with a *4 or *9 rating is generally easy, but, once they hit 30 year old it gets very hard. Players who are lower rankings will be difficult to sell mid season. I will buy anyone under 30 that meets my requirements and is *8 or *9. Again it is harder to sell players mid season that do not have a *4 or *9 rating. I have a youth product rating 172 and fast trainer but will not sell mid season and I may have to keep and not play or sack. The higher you get the harder it is to sell players, but on the other hand it is easier to buy players with 1 token if you get the timing right.