I think you are approaching this question the wrong way. There are required skills, nice to have skills and almost irrelevant skills and the balance also depends on how your team is built, so the answers are not set in stone.
If I look for a guard in D1, the bare minimum would be 16OD 10JR 10PA 4IS (I would never take a guard with skills like that though). But would I consider adequate a guard with 17OD 20PA 8JR and 8JS? Sure I would.
Also salary considerations are often as important as the skillset. So to me a guy with elite IS/ID/RB and 4 SB is worth more than the same guy with 10 SB because he will cost a lot less.