Here is your OP.
You said he was considering coming back "because Marrone of there", which is a gross exaggerating of what Polian actually said. Marrone per se was not the reason - it was the lack of a QB and a HC.
"Polian told the Buffalo News he initially believed Marrone and quarterback
Kyle Orton, who
announced his intention to retire after 10 seasons on Monday, would still be with the team.
"Then, the quarterback goes away and the coach disappears," Polian said. "So the job, from my perspective, changed. It went from a mentoring and advising role, which would have been fun, to a real heavy lift -- hire a new coach, hire a staff, et cetera, et cetera, et cetera.
"The bottom line is the job description changed pretty dramatically and the most important thing is that it would have required a really long commitment to a new coach, who deserved a long commitment that I wasn't prepared to make. And that wouldn't have been fair to the organization or to whomever their new coach was. The coach is going to want to know that you're going to be there for a reasonably long time."