Dotson apparently is looking at a nice matchup with Denver's #2CB
It's a great thread so not nitpicking...but you (and others) have mentioned this multiple times along with a belief that Surtain will "shadow" McLaurin. IMHO as a Broncos follower this belief is way overblown as an FF predictor.
Surtain doesn't typically shadow a #1 receiver around the field. The Broncos for the last several years have played a mix of man/zone coverages in a Wade Phillips-based 3-4 scheme. Vance Joseph is a direct disciple of Phillips. Specific DB coverages are based on specific play calls.
Last week was somewhat of an anomaly regarding how much Surtain matched up w/ Adams due to Adams' elite abilities and a specific VJ defensive game plan set up to try and shut down Jacobs and Adams. Even then, Surtain was the closest defender only 61% of the time (NextGen).
It is true that CB Mathis had an absolutely horrible game last week. But he's not a horrible CB and, in fact, was very impressive in his rookie year and had one of the better training camps of all Denver players.
-The 24-year-old is the current starter opposite All-Pro Patrick Surtain II, and through his rookie year and this year's camp, he has been extremely impressive.
-Mathis has continually stacked good performances on top of each other, and it has reinforced his status as a potential rising star on the Denver defense.
-Playing opposite a star player like Patrick Surtain II has made opposing quarterbacks more willing to challenge Mathis in pass coverage, but so far in his young career, Mathis has been up to the challenge. Going back to his rookie year, Mathis has displayed an ability to provide consistently tight coverage against opposing teams' starting wideouts. Source: Predominantly Orange.com
The only thing IMO that is predictable is that Surtain will play on the outside 99% of the time and rarely match up with a slot receiver. I watched all the Dotson targets from last week and he's just as likely to line up on the outside as anyone in Bienemy's KC scheme.
Bottom line: Make WAS WR decisions based on perceived overall Broncos defense and secondary strength...and not overthink beyond that.
$0.02