We've needed a strong defensive midfielder since Jedi was dropped then sold - the manager & coaching staff recognised that, any pundit that talked about our defence and just about every fan I know.

I rate Macca but neither he, Cabaye nor Ledley offer the necessary level of protection in front of the back 4 (or 3 or 5). Hopefully, Luka is that man.

Ward, Kelly & Tomkins can all play right back.

Will this be five? It's gonna be five! It IS five!

Oh come on, highest spenders in the Premier League this window.
3 defenders signed.
We already have 2 right backs, regardless of how good/bad you think of them they still primarily play that position.
Sam is still getting used to the squad, assigning defensive duties and formations, we don't even know how well Ward, Kelly or Tomkins can perform these new jobs.
Jenkinson was who he wanted, Jenkinson didn't want to come.

Have you seen where McArthur's been played this season? Plus he's not a holding midfielder even when he does play deeper. Making tackles does not make you a "defensive midfielder". Jedinak and Milivojevic are holding midfielders that are best used in that role, McArthur's energy would be wasted if he played in that role. Elsewhere Cabaye, Ledley, Puncheon lack the understanding and discipline to play that role. Flamini has impressed whenever played but he can't seem to get consecutive games for some reason.

After that s**t anyone who doesn't think we need a defensive midfielder with a bit of guts needs their head examined. .

There is an argument for questioning why we didn't buy an entire new team during the transfer window not just a right back