Watson was a key figure involved in negotiations that led to the troubled milk processor securing a lifeline. But with Bright now in control - lifting its stake from 39% to almost 65% - they get a free hand in deciding how the company is run.
Does Watson's departure also mean that the days of non-Bright directors on the board are numbered?
It's clear that Synlait needs to be run differently to ensure a brighter future. Early indications are that Bright Dairy is thinking the same.