@DrewDad,
I understand this transition process has to be relatively delicate. The nature of his candidacy and the groundswell it caused deserve a few beats at least. And this agitation before conceding is probably important and even necessary to get some real movement going in the DNC - I can see all that.
I'd be lying though, if I said Bernie doesn't make me nervous. It has to do with the vibe I've had of him since first becoming familiar with him on his weekly appearances on XM radio. He always seemed like he just loved occupying the niche of the guy who repeats the left-wing talking points - do the stalwart liberal schtick, take a bow, rinse, repeat. Now that he's got a big adoring audience, I worry that he loses perspective about his significance versus the importance of doing what is necessary to preserve the gains Obama made, and to assure the progressive agenda gets moved further forward.
I guess it won't be long before we see the outcome of how he has chosen to navigate this.