The 22-year old Scottish striker enjoyed a stellar season on loan with Hibernian, where he scored 28 goals in all competitions, which led him to open the door to a permanent move to the Edinburgh outfit.
However, Griffiths says he is heading back to the Molineux with confidence after speaking to Jackett about the clubs plans to gain promotion straight out of League One following last season’s relegation.
"I spoke to the new manager just before I boarded the plane to go out to Croatia (for Scotland’s 1-0 World Cup qualifying win on Friday)," Griffiths told the Express and Star.
"He said he was looking forward to working with me and that gave me a lot of confidence about going back there to start pre-season.
"I'm going to work hard to try to get myself into the team.
"I have to concentrate on Wolves because my contract is there. I thought it was great of the manager to call me like that."