How could you change his mind when you are the one who's wrong? Josh McDaniels only coached the Broncos in 2009 and part of 2010 (fired after Week 13). It's not that hard to look up.
Get Stats, Coaching Records, Team Ranks, Coordinators, and more for Josh McDaniels on Pro-football-reference.com.
www.pro-football-reference.com
The Broncos made the Playoffs in the 2005 Season and not again until the 2011 Season....you know, the one where Tebow beat the Steelers.
Edit: Didn't even need the 2nd link....clearly states McDaniels has a 0-0 Playoff Record in the above link