They are not fully integrating go-to-market. In the podcast Krishna says that the size and organization of Red Hat's GTM was larger than every other acquisition, and they were looking at partial integration only. Since then they actually have moved the sales teams for smaller markets to IBM. Red Hat kept the 20 or so largest markets and the verticals.

Right now operations is employed by IBM but still mostly working as they did at Red Hat. We'll see how that changes over the next couple years, as that would be the first look at Red Hat integrating into IBM.