Zombies specialising in the Block+Dauntless+Pro side of things.
Skeletons better at Wrestle/Fend/Strip ball mobility hunting.
Yeah, FG are a bad idea, my bad.
Edit: Double skills worth strategic consideration
Skeleton: Sure feet, Jump up, Diving tackle, Leader, Hail Mary Pass, Dump off (no really, it confuses people enough to make it worth it but it needs pro on would be catchers and the dump off player which should be a strong contender for a second skill anyway**)
Zombies:Sidestep, Jump Up, Diving tackle, Leader, Hail Mary Pass,Thick skull (not actually taking the piss)
Pointless skills which might seem good: Dodge(stunty leagues are the home of tackle), Guard (you dont need assists vs St2 and ST5 are better jump marked rather than attacked), Mighty Blow (get pro instead if you really want to lie them down), Sneaky Git (Did the maths, its pointless, you go down from 11/36 pitch evictions per foul[assuming assists to get 100% break] to 11/36... Oh right, that's the same number, If you need a 10 to get a break you evict 18/36*) and never if you don't break, but that's not even useful strategically, unlike say block or sure feet which could actually make a difference in a game.
*3 outcomes make 10, one is a double, 2 outcomes make 11, no doubles, 1 outcome makes 12 its a double. 2 doubles in 6 numbers, multiplied by the 1/6 injury roll chance=12/36 then add the 6 evictions native to that roll =18/36
edit 2: I wasnt trying to make a playbook
If you have a cage of 6 Pro zombies each getting 1.5 chances to get the ball getting a fair chance to decide roughly where the ball ends up isn't so bad, and +1SPP for a successful zombie dump off is beyond badass.