STA for sure should remain in yellow, other values would IMO underrate him. RES could come down to 75, about MEN I'm not sure. I can remember matches where he was pretty good (although things didn't look well for Bayern) but there were also matches where he diasppeared. I leave that change up to you

Regarding the other part: it's a shame he didn't archieve more with the NT (mainly because of his injuries) but I wouldn't say that his archievements with Bayern are bad..
Btw, era could be even longer, he was also very good from 1993-1996..