Why does everyone make Prowl the SiC?

[khgiggle.livejournal.com]

You know something that bugs me? In fanon, Prowl is Optimus’s second in command, and Jazz is his Third in Command. That’s not how it goes in G1. In G1, Jazz is Optimus’s second in command. I’m not sure what Prowl’s rank is, but he does seem high ranking. Why do people want to give Prowl Jazz’s job? I’d like to see someone give a valid reason and a story behind the change in station.