Steve McClaren admits missing out on the Aston Villa job left him frustrated.

McClaren admits he went into the Nottingham Forest job slightly underprepared, with his failure to land the Aston Villa post ahead of Alex McLeish leaving him frustrated.

"That [Villa] was a big disappointment," he told The Independent.

"I didn't do my due diligence [on Forest] well enough. I was disappointed [with the rejection from Villa] and wanted to show people. I thought it was a great opportunity - great club, great fans, great history and tradition.

"Unfortunately I knew very early from going in that we weren't on the same wavelength. I was set to move my family [to live near to Forest] and I stopped that one.

"We were the wrong fit. In the end other things were going on behind the scenes.

"For the first time in my life I thought it would be best for everybody, for the football club, the fans, the players of Nottingham Forest... that something had to change. The club had been crying out [for that] before I got there. [For] change in everything within the club. We didn't, by then, have a long-term plan and vision. I didn't have a relationship with the board."