How all four wild-card underdogs can pull off upsets

Heading into wild-card weekend, four NFL teams -- the Tennessee Titans, Atlanta Falcons, Buffalo Bills and Carolina Panthers -- are all at least 6.5-point underdogs.

Luckily for those teams, I'm here to help them pull off upsets and advance to the divisional round. Let's look at these four games through the lens of a coach and break down three things each underdog has to do to win. Here we go:

How the Titans can upset the Chiefs

Saturday: 4:35 p.m. ET, ESPN | Point spread: KC by 8.5

Why it's important: The Titans need to script a game plan to attack a Chiefs defense that has surrendered 247 passing yards per game this season, which ranks No. 29 in the NFL. With the ability to target the big…