You're wrong. Jubilee is not desperate, Ruto is, there is a difference. He is scared of the "long knives" as you note, and his fear can be seen in forcefully merging parties, eliminating imaginary Gema enemies at the slightest whiff, lining up allies, accumulating wealth, name it. The Lusakas, Wamalwas, Kindikis and Mutuas are needed to reign in Kikuyus.
Pundit says he has "quivers", he does not, he lives in mortal fear of betrayal.
Everybody knows that if Ruto survives the long knives waiting for him after this elections win or lose to run in 2022, he will need a Kikuyu DP. For him to therefore offer this position to a Luyhia is laughable and it shows the kind of desperation that can only attributed to a person who is smelling defeat. I do not know how Ruto with all his money and power has been able to make so many enemies. He is hated in the opposition stronghold, he is not trusted by most of his kikuyu allies and he has generated a lot of bad blood with the some heavy hitters in his own backyard like the Moi's and Iso Ruto just to mention a few. Its amazing that ouru would have an easy time touring Nyanza including holding a rally in Kondele but Ruto cannot. How do you even think of running for president with so much high negatives. His personality makes him completely unsalable as a presidential candidate. He should stick to campaigning with ouru.