Swindon chairman Jeremy Wray is to be replaced after 18 months in charge at the County Ground.
Wray, who was instrumental in the capture of manager Paolo Di Canio, has overseen a resurgence during his reign - from relegation in 2011 to the League Two title the following year.
The club's board of directors are set to name Sir William Patey, former British ambassador to Afghanistan, as his successor.
Di Canio recently hit out at the club's current transfer embargo imposed by the Football League after exceeding their set wage and fee limit, but the Italian remains full of praise for the departing Wray.
"The chairman is the best chairman a manager can have," he told BBC Sport. "We have achieved what we have achieved thanks to the way he supported me in the beginning when there was some friction with the players.
"The way he handled the situation showed he is the best chairman you can have. The result is thanks to him and then Paolo Di Canio, the technical staff and then the main actors, the players."