Heady with political power?

There is an institutional head enjoying the patronage of a very high political authority, who has got into the habit of taking arbitrary decisions, defying even the instructions given by the top team member, they say. 

This high-up who has risen to prominence by treading ‘way of the academics’, now heady with political power, is reportedly taking an extra-interest in projects that could bring him peacock notes. 

Meanwhile, the top team member seems to have left him alone given he is an appointee by the big boss, they say. 
The office room reserved for the top team member at the institution too has now been closed, they say.