Trend-spotting: QBs rising, falling after Week 5

Two months after 50 NFL coaches and evaluators stacked quarterbacks into tiers for 2017, we take a look at who is rising or falling through the first five weeks of the season and why.

I've excluded quarterbacks whose struggles stem disproportionately from what is happening around them and those who have been up-and-down to this point without settling on a clear trajectory.

Here are five QBs trending up and four trending down, along with insights from execs on whether those trends will continue.