Ben and Barrett on apostolic succession

http://www.patheos.com/blogs/bibleandculture/2017/01/10/quote-day-ckb-apostolic-succession/

This begins with a quote from C. K. Barrett. A Catholic then challenges BW3 in the combox. A brief exchange ensues. BW3 talks circles around the Catholic disputant, who's no match for BW3 on 1C ecclesiology.