As long-time readers may know, one of my favorite documents from the early church is the Didache, on which I have posted from time to time.
And now we have this treat, the blog Energetic Procession, which is Orthodox, has a decent post arguing that the Didache is in harmony with Ignatius' monarchial episcopate. Check it out and decide for yourself for successful the argument is.
Apostolic Succession in the Didache