All the players I've had like that have improved the next season apart from one. An expensive scout AML/AMC that was 4-6-5-4-5 all the time. I gave him another season and the same thing so cut my losses and replaced him with another scout who I've now had for 5 seasons and is a 7-8-8-9-8 player.
Was a sore one to waste 50 tokens but had to be done.