Jon Gruden made an appearance on ProFootballTalk.com’s poadcast earlier this week and told Mike Florio that his recent Ring of Honor ceremony in Tampa triggered his desire to return to coaching in the NFL.

“I had my feet in the water. I just had a hard time diving in. And as you know, if you’re going to do this, you gotta be all in. I mean you gotta be all in,” Gruden said of why it took him quite some time to come back to coaching, according to JoeBucsFan.com. “You have to be on a constant mission to acquire knowledge and personnel. ‘What’s a better way of runnin’ the football? What’s a better drill we can run? Who’s the best offensive line coach we can get?’ You have to be on a constant, 365-days-a-year mission. And I wasn’t ready to do that. But it dawned on me that night in Florida. And here I am.”

Many were hoping that night would entice Gruden, who led the Bucs to a Super Bowl victory 15 years ago, to return and lead Tampa Bay to a long-awaited trip to the playoffs. However, the franchise has decided to keep Dirk Koetter around for at least one more season and Gruden has signed a 10-year contract worth $100 million to lead the Raiders in 2018.