There is cycles to form.. But...

I will say the same thing I have been forever.. I think how you assign the points to their attributes makes a difference.
If the physical column isn't high enough, my players efficiency drops too. I got a guy recently (from a friend's team where he got sixes and sevens and barely scored) that his attributes were skewed differently than I do for my team, and he did "ok" but I have been adding the cones to his physical, and his form has improved.
terrible efficiency-13-el-m-skills.jpg terrible efficiency-13-el-m-form.jpg