Really I think that increase defense or attack to try to increase his internal % is a waste of time in a player that have 5* or more, coz I really think that a player show what can do in a level of 5*.
Hey Khris
I respect your knowledge and I can see some logic in your point of view but I want to say that it's a "unique" opinion.
Many relative posts in this forum saying that it’s ok to sign all sp to attack if AM/ST, to defense if D or GK and mixed to Mid and it’s ok, to put some sp to M&P. So, are you disagree with almost everyone ? (I don't say that is bad ...)

Nordgens and agent/scouts have very balanced skills at the beginning. An agent/scout (that what I call the 6* players you can buy) can gain about 40 sp / season. So you’re saying that it’s better to sign all the points beyond the Q level of the player only at M&P even to those ?

If I have an MC with Free-kick specialist ability or Corner specialist shouldn’t I boost his attack to get most of his s.a. ?