You're wrong. Raila went for NASA immediately because he doesn't want to bind himself to the MOU they signed. He, therefore, has no time for maDVD, Weta, and Kalonzo because they intend to make him pay the promissory note.
Raila is creating a new coalition with the lie that Uhuru has endorsed him in the BBI handshake party. That handshake coalition is the one he hopes to run for 2022 election with it.
Therefore Raila is trying to get Western and Ukambani votes indirectly - and that he does by destroying them - the same way you'd prop them up. Ruto now intends to prop maDVD - because if he cannot get Luhya votes - Raila ought not to get it too.
But until we know GEMA grand gameplan - everything is still up in the air.
ODM and Raila are anticipating a change in Constitution and re-introduction of the role of a Prime Minister - With the Luhya community being a factor in 2022 elections .Their worst fear is if either of them Wetangula or Mudavadi joins forces with Ruto.
Remember in 2013 it was the KKK(Ruto Kalonzo Uhuru) and because of the constitution didnt allow 3 Major posts Kalonzo was in Dileema and had to make a last minute decision to back up Raila .