i know the qb situation looked bleak last week. but consider this, even with the relatively low amount of attempts Rattay had in week 1 battle was still targeted in a big percentage of those. Again last week, he caught ~1/3 of rattays completions. so even though we might not be scoring a lot of points, I think he could make a decent bye week fill in as I think he will get 4-5 receptions a game and around 50-60 yds a game.
So in point per reception leagues with 10 yds receiving, he will get you roughly 8-10 pts a game with the occasional TD. At the end of the year that puts him around 60 receptions perhaps and 700 yds. This isn't particularly great, but as a bye week filler I think you can almost guarantee this mediocre production.