Big 4 - How much do SMs get involved in financial negotiations with clients?

Curious to know how much do SMs (Senior Managers at Deloitte - and corresponding levels at other Consulting firms e.g. Director at KPMG, etc) get involved in (i) identifying potential clients and (ii) negotiating with clients, to bring in revenue $? Or does this level focus mostly on leading and executing the engagements _after_ the deal is signed? To put it different, do any of the levels BELOW Partners/MDs have sales targets? And how does this compare outside the Big4? #consulting #seniormanagers #revenue #sales