Birmingham City defender David Murphy has admitted he has not lived up to his potential after moving from Hibernian during the January transfer window.
And Alex McLeish's £1.5million capture revealed his frustration at his side's inability to keep a single clean sheet during his time at Blues - a total of 14 matches.
Blues' relegation from the Premier League after just one season was confirmed at the weekend despite a 4-1 home win over Blackburn.
Murphy, 24, did not make the kind of glaring individual errors as some of his colleagues but said: "I've been so-so since I came to Birmingham.
"When I first came into the team I felt I was performing well. I always wanted to show that I could play in the Premier League and I think I did that. But in a couple of the last games of the season I was not too happy with my performances.
"It was also a massive disappointment that we conceded in all the games that I played in and that was one of the reasons we drew games we should have won - and also lost games we should have drawn.
"I can't quite put my finger on why that was. It is something we work on every week in training but it was just not happening. It was really disappointing and frustrating from my point of view. We proved that we could score goals."
Murphy has already pledged to remain at Birmingham along with the likes of James McFadden and Stephen Kelly, despite making the drop into the Coca-Cola Championship. He said; "The SPL is probably on a par with the Championship so I know I can play at that level."