Using the search function on the website you can find lots of useful information about teams in the NFL that may help you make your decisions on who to pick each week.
Search for the team you're looking for and you'll be redirected to their home page where you'll initially find information for the current season and where they rank in certain statistics.
There are a number of additional tabs, all of which feature different information:
You can click on any player to be taken to a similar set of pages about them featuring news, current season statistics, and career statistics.
If you want to see information and stats for another team you can search for them using the same method or instead use the team picker tool to switch teams: