Use a “rich” channel for persuasive situations. A rich channel allows you to receive and
provide instantaneous feedback. For example, if you need to garner support for a potentially
controversial program, have a face-to-face meeting rather than use e-mail or voice mail.
Persuasive situations demand that the sender is able to quickly adapt the message
to the receiver to counter any objections. Neither e-mail nor voice mail provide that ability.
Face-to-face communication offers the sender the greatest flexibility.