Chelsea manager Frank Lampard is not sure whether he can last as long in the job as Sean Dyche at Burnley.
The Blues and Clarets are set to go head to head at the weekend in the Premier League.
While Lampard has enjoyed success at Chelsea in the past year, he does not know if he will be in the job seven years from now.
Dyche has been at Burnley since 2012.
"No manager will commit to the answer you want there," Lampard told reporters.
"It's a great achievement from Sean, what he has done at Burnley when you think about the balance of the Premier League and results he has produced there year after year.
"It's always a difficult game. No doubt it will be very tough."
