The Stormers center situation

I am not happy with the selection of the center pairing yesterday and would not put Dan Kriel in the position at all.    He flopped both from an attacking and defensive perspective - so that one is to my mind a no-no.
My first choice centers will be De Allende-Viljoen,  My second choice is Dan du Plessis-EW Viljoen.   My third choice pairing is Kriel-Viljoen.   My fourth choice would be De Allende- De Jong.  My fifth choice pairing would be Viljoen-De Jongh. and 6th choice pairing Du Plessis-De Jongh and the 7th Kriel-De Jongh . 
All in all I would until De Allende returns I would play Du Plessis at 12 and Viljoen at 13.  I would put Du Plessis on the bench in such a scenario when De Allende gets back.   If Jones gets back I would bring him into the scene as well.   I would not use De Jongh - even on the bench when he gets back.