sort of like asking if matt ryan and sanu are legit. the falcons are racking up yardage in garbage time games when defenses are playing soft zone. nothing has inherently changed about them other than they have gotten lucky by being down in games but still having a solid offense.
Trying to decide who to start at TE. The only two TEs I have are Delanie Walker and Jason Witten (drafted Njoku, but he's obviously out for a while). Neither of them have been putting up good numbers, but I feel like Witten is much more consistent since he's a security blanket for Dak and gets a few targets a game at minimum, but obviously, he doesn't get much RAC and his big points are reliant on TDs.
With Walker, he's obviously more likely to get big gains since he's significantly faster, but with Mariota being benched, I'm not so sure if I trust Tannehill to really get him the ball. On the other hand, Walker is a veteran presence on the team and Tannehill may lean on him a bit more than the young WRs on the team.