Offset with If function

Cell C4 contains the formula,

{=IF(AVERAGE(N(OFFSET($A4,0,LARGE(COLUMN(A:BC)*ISNUMBER(A4:BC4)-1,{1,2}))))>=9.5,"Review 4 Wks","Review 2 Wks")}


The last score is 8.0, in cell AD4. C4 returns "review 2 wks" as it should. AE4, I have set as "exempt" as every other week will be exempt from scoring no matter what.

I would like AF4 to say "Review", as this is 2 weeks from the last score. If the score entered in AF4 is still below the threshold, AH4 should say review, but if it is above it, AH4 should say exempt, and AJ4 should say "review." (This is 4 weeks from a good score in AF4)

Thanks so much. I hope this makes sense.