When he first joined, he had this desire to improve his game, get inside the box, and score goals. He also offered a solid defensive side of the game to help Coleman. That has all seemingly dissapeared.
Goals and assists aside, he doesn't really know what to do with the ball to make a difference. All you need to do to get Walcott out the game is to put him against a speedy fullback. He will 95% of the time run on the outside trying to beat you for pace and minimal shoulder faints. We occasionally see him make some very good off ball runs, but he doesn't do this enough and the killer instinct to finish the chances off has gone.
Defensively, he has also hidden a bit. The energy is still there, but the enthusiasm for the task has dulled, which is hugely needed considering how Seamus has been struggling for form this season.
I liked Richarlison's performance yesterday on the right. Wingers should be able to easily play on either wing, and often being able to swap with the opposite winger during games can be a plus.
A replacement is needed though for Walcott. Whether that comes from within the squad or the transfer market remains to be seen.