Earlier this week, Warburton took to social networking site Twitter to dismiss speculation that he will leave his current role at Rangers and take up the vacant managerial post at Championship side Fulham.
The former Brentford boss has done a brilliant job at Ibrox so far, and former Rangers midfielder Ferguson believes that the Englishman’s future will come under more uncertainty if he continues to do well.
“The reality is that the better Rangers do then the more chance of him being linked with any big job that becomes available down south, there’s no doubt in my mind about that,” the former Blackburn Rovers star has written in The Daily Record.
“I’m convinced Mark will stay at Rangers, 100-per-cent. He’s doing an unbelievable job. He deserves the right to go about his business in a quiet and determined manner if that is his make-up.”
Warburton was appointed the Rangers manager in the summer, and he has done a remarkable job at Ibrox so far.
The Glasgow outfit are at the top of the Scottish Championship table at the moment with 40 points from 15 matches.
The Gers are three points clear of second-place Hibernian and are favourites to win the league title this season.
Rangers will take on Raith Rovers away from home at Stark's Park in the Scottish Championship on Saturday afternoon.