Just two years ago, Marcus Mariota's top pass catchers were Delanie Walker, Dorial Green-Beckham, and Harry Douglas. Woof.

Walker's still there, but since then, the team has brought in receivers Eric Decker and Rishard Matthews while using high draft picks on Corey Davis, Taywan Taylor, and tight end Jonnu Smith. Ya think this situation is a bit different?

This is all great for Mariota, who should be able to build on last year's stellar performance as a result. But it's not so great for those of us hoping to attach pass catchers to Mariota's efficient right arm. The preseason has brought exactly zero clarity to the situation.

Both Decker and Davis missed significant time due to injury, but they were able to return to practice Tuesday. They did exclusively individual work, but this does make it sound as if they'll be ready for the season opener.

Assuming that happens, it'll create issues for Matthews and Walker. Matthews had a 22.04% target market share when Tajae Sharpe was the other top receiver on the team (though that did shoot up to 28.69% from Week 9 on), and Sharpe is nowhere near the level of Decker and Davis.

Walker missed some time due to injury, but in the games he did play, his target market share was 22.32%, already down from 24.49% in just 15 games in 2015. It's still a good mark for a tight end, but adding Decker (a red-zone threat), Davis, and Smith puts Walker on shaky ground.

To make all the issues worse, the Titans are a team known for its desire to run the football, having invested heavily in DeMarco Murray and Derrick Henry the previous offseason. So, it could be a low-volume offense in which no player commands a heavy market share. That makes it a situation we could be best suited just avoiding.