The Borg(ette) was brought in as the season final to platform the direction for the following year.
That was not a reaction to week to week trends. That was an over reaction to an unflattering year that didn't live up to expectation.
The difference between making choices on the fly and tweaking the show each week opposed to radically reinventing the show in the 5 month hiatus between Scorpion I and scorpion II is like comparing the US Boy Scouts to the US Marine Corps...
Wang knew he was going to be fired. They might not have told him, but he knew. Everyone knew. He was sitting there waiting for his pink slip, wondering what was talking so long, JUST DO IT! DO IT!
DO IT ALREADY! WHAT THE HELL IS TAKING YOU SO LONG!? ...But they instead ejected poor wee sweet little Jennifer into the heap of broken souls that is the sewage outlet come the Burbank City Limits.