I thought I'd edit this post before giving too many people heart attacks. The original post is below, and was originally titled "Is Mark reitiring?"
In "Things I think I think" Mark signed off with this:
An attendee at our London conference yesterday said, “You are my Drucker.”
I say this to announce my retirement, wishing to go out on top. Cheers all."
I don't know if there's some idiom here that I'm missing, or if this is literal. Any insight from the MT Team?