Bottom post of the previous page:
Thanks for the lengthy replies!
I was initially sceptical of Marko and Rindt "growing up together", but then I googled and indeed, Marko is just one year younger which surprised me! But they definitely didn't start racing together, you can see in the Bergrennen photo Marko is still in a Formula Vee, a beginners class at least three steps below the F2 Rindt is seated in, and by then Rindt was already well established in F1.
Anyway, I did a bit of online research myself (not much you can find), but it seems indeed that the managerial team that took over Jaguar for Red Bull was much more Arden than RSM Marko (in fact, no RSM Marko at all it seems). That was basically the thing I wanted to find out. Marko's role in the team appears to have been as an 'advisor' all the time, so basically a sponsor's liaison man in my understanding. Red Bull the F1 team is Horner, not Marko.