Blackburn are set to face Forest this evening, and the fixture brings together two sides who have been starved of success in recent times.
Blackburn only won the Premier League in 1995, but they now sit in mid-table in the second tier.
Forest, meanwhile, were once champions of Europe, but those times are now a distant memory.
And Lambert suggests that unless both clubs make changes at the very top, their fortunes are unlikely to change any time soon.
“Nottingham Forest and Blackburn Rovers are two clubs with fantastic history attached to them but if it’s never fixed above, it’s always going to struggle,” the former Aston Villa manager said.
“There’s some great clubs in the Championship when you look at it including ones who are in trouble financially. Until you get everything structurally right it’s never going to kick on. Forest are the same.
“I played under Martin O’Neill and John Robertson (at Celtic), who were fantastic players who played in that great Nottingham Forest side which won two European Cups back to back.”
Blackburn and Forest have little left to play for, after enduring disappointing campaigns.
Rovers are currently in 18th place in the Championship standings, with Forest right behind them in 19th.
Both sides are well clear of relegation, but they will be looking to improve considerably next term to give their supporters some much needed excitement.