From this, Ehrman offered an analogy to the SBL crowd: getting to the truth of the historical Jesus is a tricky task, and legends about him would often spring up without any genuine historical base. In other words, Ehrman saw in the apocryphal story about Metzger a parallel with the stories about Jesus that are recorded in the Gospels.An article by Daniel B. Wallace, a prominent Evangelical Textual Critic of Dallas Theological Seminar, recently wrote an article for Bible.org entitled The Historical Metzger. Here, he subtly turns Ehrman's argument against the reliability of the gospels on their head. It is well worth the read and can be found here.
I should also note that Dan was a guest on the AOMIN podcast The Dividing Line this Thursday which can be found here.