Start a franchise with the trade deadline off. Sim or play the season to Week 17. Find out which team has the worst record. Trade your first draft pick for their first pick, and they will always accept. Note: You can also do this with second through seventh draft picks.
Off the line, without speed burst, instantly juke right then left. The CB will be fooled. Speed burst, run a 45 degree angle to the center of the field, and call for the ball. The CB should either be far away or behind you, and you will usually catch it for an easy touchdown. The following also works for large gains. Instead of right then left, do left then right, and catch the ball running up the line.
Make sure you have all the desired players from your current league on your team before the last game (championship). You will not be able to get those players if you win the championship because you will move on to the next league.
Go the Free Agent screen in Franchise mode. Sign a free agent named Jordan Beck. He is a middle linebacker that is 71 overall. Change his position to defensive end, and he will be 90 overall. The same thing works for many other linebackers when changed to defensive end. You can also change Ladainian Tomlinson's position to linebacker. Do this, then trade for him. He will have an F trade rating, and his team will accept almost any player in a trade. Once signed, release him, then resign him to save cap room. Then, change his position back to running back. He will be 99 again. This can be done for lots of other players.
If you choose to create a Superstar, you will have to do drills after you create him. To avoid having to do drills, choose "Create A Player" (above "Create A Team" in the Features menu). Set the year he is born to1987. It should say at the bottom of the info menu that he is zero years pro. Put him on the team you want to use. After you customize his appearance, make his stats 99 overall. Then, go into the depth charts in the Features menu, and put him at the top of the depth chart at his position. Go back into Superstar mode, choose to play as a rookie, and your created superstar should be there with all the other rookies from the 2008 draft. Choose the superstar you created. You should now not have to do any drills and will go into the pre-season with the team you put your rookie on. If you put him at the top of the depth chart at his position before you went into Superstar mode, he should be a starter.
When you make your profile at the main menu, select the team that you want to be drafted by as your favorite team. When you start your Superstar Hall of Fame career and get to the draft, a message will appear stating "Would you be interested in being drafted by your favorite team?". Select "Yes", and you will be on that team.