SF's are the hardest to train, so it's not strange that there is less supply on the TL. Big men and guards can get away with being one-dimensional, whereas it's harder for SFs, they end up becoming liabilities. I've had a few SF's in the past few seasons, around 20k salary, for around 500k (some a little more, some a little less), but they were never convincing players. If you say you can get good trainees cheaply, why don't you train a SF of your own? That's what I'm doing ;)