I just tried swapping Dooku and Jinn in my usual lineup and fought a guy I normally beat 99% of the time in under 2 minutes.
With Dooku in the leader slot Yoda couldn't get BM up, his Dooku stunned my Lumi, and even though a couple of dodges and then a later BM by Yoda allowed me to get everyone Offense Up, it was too late, and I lost.
Speed unfortunately is STILL all that matters. :(
Maybe it would work better with a different team. But in mine, Jinn goes back in the leader slot.
(Team: Jinn, Yoda, Lumi, GS, Anakin/Dooku/RG depending on my mood and opponent.)