PwC Senior Manager interview questions

Interviewed for strategy role i.e. Strategy& team. Very traditional case study based interview. It was not hard, but more math / GMAT style, which may be suited for freshers role. But, I had 11+ yrs of strategy consulting exp, and it was lame to judge me like a fresher on my analytical skills only, than on my industry experience and project delivery exp. I was not expecting such a case. And, of course didn't do well doing all the calculations on paper. Haven't used pen/paper since ages. Very disappointed with the interview process / method