OR....
in Milwaukee, 106.9 goes to WNQW from 5/2010 to 6/2010, PUBLICLY announces the shift, and Clear Channel flips WRNW to "Now" and beats 106.9 to the "Now" format!!!!!!!

https://en.wikipedia.org/wiki/WRXS
"Aborted flip to top 40 (May-June 2010)" Good reading.

Now, when you have one jock and the rest piped in, not too many to let loose of a guarded secret, such as a flip, etc.

Always nice reading the different ideas/responses here!