I liked the idea of Allen taking over because I thought the stint with the Raiders was just a case of him being young and with an organization that has had a hard time finding its better days. I thought the familiarity would be a plus but that was probably more of Allen being tied to Sean that it sounded really good at the time, and I really thought he learned something by helping Payton build a winning culture in New Orleans.
Fast forward...it all melted down and now looking at your side of why you were against it because of the internal hiring but i never thought about it and all the way back to Siefert but that was about as plug and play as you could get. Those old Niner defenses alone were able to win championships for several years in a row.
Now that you point that out the failure rate is not good and probably why it doesn't happen that often. So many things go into play as being the right type of coach but if it were easy everybody would be doing it.