Sixteen years ago, Savoie wrote on the the concentration of power in Canadian politics (LINK); the Duffy trial strengthens his thesis.
"...governing from the centre has created a fault line in the government where things that matter to the prime minister and his immediate advisers are brought above the line and dealt with quickly and effectively. Only the prime minister and his advisers will decide what belongs above the fault line. It can be anything from a decision to go to war while not consulting the relevant ministers – let alone the cabinet – down to a $90,000 problem considered sufficiently important to generate 450+ pages of e-mails. Under these circumstances, why would anyone other than a career politician want to run for Parliament?"
Notes on Savoie's memoir in the February section of Not My Books