I guess the bulk of us here are well used to Elon's over-optimistic deadlines, but for the ones desperate to get an M3, who aren't well versed with Elon-Time, it might indeed be very frustrating. I guess many of us here are well-heeled enough to already own MS/X, so we're not so invested in the M3 from that perspective, with some notable exceptions, of course...
Regarding whether a COO would help things going forward? I'm not so sure about that. Why? Well if there was a strong COO in place then I could imagine we'd still be tracking the original M3 planning which was bringing to market in 2019, or something like that? So from that perspective, anyone dampening Elon's wild ambitions might swing it too much the other way and decrese Tesla's agility. I, for one, see it all as growing-pains, and I expect them to screw-up every schedule for the foreseeable future. That's the nature of the beast and it's a risk I accept. Of course I'm long, so it's less stressful, must be pretty bad for options traders, but on the other hand, big opportunities for the day-traders, no?
If Tesla did decide to take on a COO then maybe they could poach that Cook guy from Apple. He was a very good COO and worked well under crazy Steve Jobs - in any case, he's not a very good CEO...