Today's roundup of music industry news and opinion from around the web:

• He'll still be writing the indispensable Lefsetz Letter, but Bob Lefsetz will now contribute a new column to a revamped Variety. [Hypebot]

• Meet Markus Sargeant, the talent booker who helped discover Jeff Buckley and Coldplay. [Birmingham Mail]

• Streaming service usage matches radio usage among young listeners. [Deadline]

• Old-school music manager Peter Mensch would like to spank Justin Bieber. [Inquisitr]

• First sale doctrine applies to physical books and CDs, but probably not to digital downloads. [The Guardian]