There is no set second tank right now. The goal was and is to evaluate between the two of you, it seems now that neither of you actually want to tank. which raises another issue all together. You both showed interest around the same time, and the thought was surely one of you would work out and be able to tank.
There has been a lot of confusion the past few weeks and for good reason, things have been heavily shook up, consistent people have gone inconsistent, long time players have left and several people have switched toons or specs, or have heavily implied interest in one of those things. Having 3 tanks right now is not a bad thing, it certainly came in handy last night.
After Ward rolled MS on a relic for his monk I took that as final solid interest ion switching, apparently that is the wrong sentiment.
At this point neither of you are 100% ready to tank, which is not only understandable it is expected. you are close though, bit more time and a bit more experience and it can work out. I believe either one of you are capable of doing it, however you will need to commit, and have no more swapping between toons. So at this point I will leave it to you three@Wardpelican @Smerffy @Papabehr. Choose among yourself who you want to me the new OT along side Papa. Let me know what you decide.
Ultimately play what you want, if neither of you want to tank and are just "doing it for the good of the team" then we can find an additional option, as much as I would like to not have to do.