Actually, I stand corrected. I think it uses one skill to determine a pool of players. But within that pool, it looks at other skills to determine the $ range.
What I would prefer would be additional filters on the transfer list search function. I would like to see potential added to the list of skills for starters. Finally, I would like to be able to search on more skills. Four skills is not very many.
I'm curious to know who is actually struggling to value their players.