Perhaps those deals were just easier to get over the line?
If you are counting Keane as a centre back, then you can't claim Coleman and Patterson don't exist.
And if (as it seems) you are counting Ake as both a CB and a LB, then we have to include JOB in the RB column too. So we have 3 RBs.
I agree the backline is not balanced and we really need an automatic first choice RB that is much better than the options currently available, but we don't need to make things up to justify it.
Moyes won't be involved in any of the negotiations, but he will (and absolutely should) have the major say in which players our recruitment team go after.