Councils don't build the buildings (with the odd minor exception), just approve / decline proposals.
Whilst I've little doubt SCC is useless, it's rather simplistic to blame it for all the ills. The Universities are expanding at a fast rate in the city centre, HSBC have signed up to SRQ phase 1, There's Chinatown, Meadowhall is a great success and expanding, as with the surrounding areas with Next and Ikea. There's so much going on right now;
https://drive.google.com/open?id=1uRb9TqMJnGc6QLnsG1OdKm5cUzU&usp=sharing
They all work with the same council, and get things done.
Sheffield is almost unique in that the population mass of the city region is so far to the East, hence Meadowhall. They were powerless to prevent that in reality, as Paul Sykes would have built it a few miles away but outside Sheffield, yielding no benefit to the city at all. The retail spend at Meadowhall alone is in excess of Leeds city centre spend.
The real challenge is in
getting retailers to want to come to the centre, something the council can only facilitate. Without doubt, they could have done a better job. At last, things are moving there, with Phase 1 of the SRQ underway.
UTB