I did consider both of the above. It is not Doris Taylor, the main difference being these leaves are sort of weak and thin and flat, whereas DT has pretty stiff, fixed, sculptural leaves. It seems too big, with too many leaves, to be pulvinata (of which there are already a few examples around here to compare). Another difference from both of these plants is the texture, which is more velvety then hairy. Like carminea or zorzaniana, but neither of those fit either (way too many leaves on the noID).
A couple of photos to illustrate the differences in hair I'm talking about (but not this actual plant, which won't be ready for extreme closeups for a while).
I'm not sure this is even an Echeveria, but I wouldn't know what else to call it.