Thursday’s defeat piles the pressure on Mourinho, who can still bring silverware back to Tottenham Hotspur Stadium when his side face Manchester City in next month’s Carabao Cup final.
But Crouch said fans should be more worried about Kane than the manager as he commented on the England striker’s body language following the humbling in Zagreb.
“Look at Kane now, trudging off with his held bowed,” he said. “Never mind Mourinho, he [Kane] is at a real career crossroads now. He should be playing at the very top.”
On Mourinho, Crouch added: “He’s been brought in to win a trophy, but if he does it, it’s job done in a sense, given their wait.
“It could be a stepping stone. But they’re miles away from that and a top-four finish and questions will be asked first.”