Nottingham Forest confirmed recently that former player Martin O'Neill had succeeded Aitor Karanka as the boss at the City Ground.

The Irishman is a real favourite in the East Midlands after the role he played in helping the side secure back-to-back European Cups under Brian Clough.

However, he arrives at the Reds with his managerial reputation arguably at the lowest point it has been in a long time.

The former Celtic boss struggled in charge of the Irish national team over the past few years and was heavily criticised for results and particularly the way they played.

Therefore, this is seen as a risky move by the Championship side, especially as there are a lot of proven managers out there.

One only came available after O'Neill was appointed - David Wagner, who left Huddersfield.

And, here we look at THREE reasons why Forest would've been better waiting and moving for the 47-year-old...

He's proven himself at this level

Wagner has already proven himself in the Championship after he incredibly took the Terriers to the top-flight.

Given the resources he had it was a magnificent achievement and one that Huddersfield fans will appreciate forever. Not only that, he kept them up during his first few months in charge and settled to life in England's second-tier with ease.

He would bring a more attractive style of play

Firstly, you have to say Huddersfield have not been the best side to watch in the Premier League but that's understandable.

However, in the Championship they were brilliant.

They attacked with purpose, played with width and had a real intensity to their game and were a great watch.

There is an understandable concern that O'Neill's football might be dull.

O'Neill has been out of the game at club level for a long time

This is O'Neill's first involvement back in club football for almost six years, whereas Wagner would be jumping straight back into it.

It may not seem a big thing but it can make a difference.

A lot changes in a short space of time in the game and O'Neill needs to get to grips with things quickly whereas Wagner knows what the division is like now, about targets and everything else that goes with it.