Freedman has done a truly superb job at Forest since replacing Stuart Pearce as the club’s boss last month.
The Reds won five of the six Championship games under the Scot last month, before going down 2-1 to Charlton Athletic at The Valley at the start of March.
However, Forest bounced back in style on Saturday, when they got the better of promotion-chasing Middlesbrough 2-1 at the City Ground.
Freedman is only 40 years of age, and former Liverpool defender Thompson believes that his success will create problems for managers who are struggling for results.
“The problem for a lot of managers in the game is when you see see how Dougie Freedman has come in and changed it makes chairmen think this is the right way for my club,” the 61-year-old told Gillette Soccer Saturday show.
“Sometimes they go: I am not going to leave it for long before I make the change… My goodness, Stuart Pearce will be wondering: 'What was happening when I was there?'”
Freedman’s success so far at Forest has underlined that managerial changes can be good for a team, but perhaps it would not be correct to get carried away too much.
Although Forest have an outside chance of finishing in the Championship playoffs this season, they may not get there in the end, which means that Freedman will have to do it in 2015-16.
Freedman has increased the confidence of the Forest players since his arrival and has got the best out of the likes of Henri Lansbury, but the hard job will come next season.
If Forest do not qualify for the playoffs, then it will be interesting to see how the Scot lifts up his players to go all over again next season.