Sit down with his group and list all their policies and line them up with each party
Decide which ones they want implemented in order of importance and which ones are non- negotiable.
Then decide what position he wants in the ruling party. If he is true to his word and beliefs he does not need to push for a prominent position but instead get his policies implemented. This will then show his followers and the rest of us that it is not all about him, which many seem to believe.
He has already said he has been this minister or had that position before. I believe if what he wants for his party and followers he should accept any position in Cabinet not necessarily Deputy PM.