According to The Guardian, club legend Martin O'Neill looks set to take over at Nottingham Forest. 

The Northern Irishman played over 350 games for The Reds during the club's Golden Era, winning two European Cups in the process. He is set to take over from Aitor Karanka, who left the club last Friday.

However, while O'Neill is a big name at the City Ground, there are a number of reasons why this is a bad idea for Nottingham Forest. Here's two:

Too negative

There's always an argument that a manager can be as negative as they want, providing they get results, and that is true to an extent. However, that was perhaps what led to the downfall of Karanka at Forest, and O'Neill could be found guilty of being even more negative.

The manager likes to deploy four or five man midfields, and while he will have a number of great players at his disposal such as Claudio Yacob and and Jack Colback, he may struggle to get the best out of the team and may stultify the progress of the likes of Joe Lolley and Matt Cash.

Currently in ninth place in the Championship and four points adrift of the top six, it seems unlikely that Forest will creep into the play-off places by playing negative football.

Recent history

Although O'Neill had many great days with Aston Villa a decade ago, his next stint at Sunderland was much less successful, and culminated in his sacking.

While his time with the Republic of Ireland also brought success, such as qualifying for Euro 2016 and getting out of their group, his recent form with Ireland has been poor. They have not won in their last six games, and were relegated from their group in the UEFA Nations League. His management in recent games has been lacklustre and baffling to some fans, and it does not bode well for Nottingham Forest.