Right now when you put units in the holding zone it makes them not cost resources, but they do still take up pool. Being a newb I had no idea about this whatsoever
I saw my resources go back up so I figured the squad wasn't counted in at all against my company, and then right as I clicked accept changes I realised that my company was oversupplied by 11... 11 PPs down the drain without warning, because apparently units not in your company are still in your company.
So, my suggestions:
(pick one)
A) Give a prompt after hitting accept changes when you're oversupplied, telling you that you are in fact oversupplied
B) Make it more clear that units in the holding zone still take up pool
C) Make it so that units in the holding zone don't take up pool