TFF, I guess that if I use the mirror version of the tactic then everything is opposite for me. For example, I should always substitute DL position and when I want to "refresh" my defense then I should substitute DL/MCL/DCL and so on...
I would go for him because he's one of the best players in the game, especially, if you already have a strong team and there's no any emergency need to improve other positons. :)