According to my unchallenged source on all of this, i.e. Anatoly Golytsin, this was part of their carefully choreographed act, the choreographers of course in Moscow.
And please don't forget how Tito used the Albanians in Kosovo specifically to keep the Serbs off balance.
I fail to see how the execution of Stalinists in Yugoslavia during Informbiro could have been a carefully staged act between Stalin and Tito. I strongly suggest you read "Conversations with Stalin" by Milovan Djilas, a Yugoslav Politburo member who went from a hardcore Stalinist to anti-Stalinist and finally Yugoslav dissident.
As for Kosovo, Tito's right hand man, Aleksandar Rankovic (the Serb head of UDBA) ran the province as his own fiefdom for two decades. It was only after his removal for spying on Tito that the Albanians got into power in Kosovo.
Interesting Kenny, must read up on Golystin. Where I was taking much of my context from was Milovan Djilas, who was Tito's right hand during the war, later turned dissident.