It may seem like common sense, but I have watched players in my leagues, and have myself this season made an easy mistake. The Thursday night games are an outlier on the week , and you must treat them accordingly.
When a team plays on Thursday night, the players from that game are locked down until the following week when waivers process. This leads to a few different situations in which care must be taken to make sure that you make moves with these players that are appropriate for your needs. The first thing to think about is if you want to roster a guy for the week. If you don't intend to play a guy from the Thursday night games, you should probably consider dropping fringe level players that you are not going to play on Thursday to open up more options for the Sunday games.
Now I'm not telling you to drop top level talent on Thursday before the game kicks off, but if you have a 5th running back or receiver that you aren't likely to play unless you will have a definite need for them in the near future. The guys I am talking about are the speculative players that have the Thursday night match up. If you weren't playing them anyways, you can take a chance on getting them back the next week, while opening up more options for this week on Sunday.
The other mistake I see made, and the one I have definitely made myself is leaving a player that has a Thursday night game in my flex spot. If you are playing a flex eligible player in a Thursday night game, DO NOT leave him in your flex spot. When you are playing the Thursday night guys, put them in their appropriate slot. Running backs in the running back spot, receivers in the wide receiver spot. This allows you the maximum flexibility on Sunday in case an unexpected injury pops up late in the week. This happened to me earlier this year when I forgot to move a wide receiver out of my flex spot and would have been able to make a decision between Darren Sproles and Reggie Wayne or Dwayne Allen in my flex spot later in the week. Instead I only had Sproles available to me.
It is a simple move to make, but allowing yourself the maximum flexibility is the best strategy to make your team a winner. A choice between multiple players is always going to be better than being tied down to only one player.
