Tucker was signed after the draft when anyone worth trying gets scooped up. The pool is thinner mid-season.
I don't think Tucker has fallen below a street kicker. Maybe if things get worse, the two kicks yesterday (including the make) were the two worst balls he's kicked all year. But right now Id be shocked if there is someone sitting on a couch who's better than Tucker. He's still an NFL kicker, just not close to the best around anymore (at least not right now). I expect that what Tucker has done this year is better than what a replacement would've done, and I'm more optimistic about Tucker rediscovering it than I am about someone nobody wants coming in and being really good.
His FG percentage is 76.7 so far this year.
That is one of the worst percentages in the league.
Someone off the street could probably do just as well as he has this year.
He'll also be a year older next year and count over 7 million against the cap.
He's not good enough right now to trust and He's replaceable