Ben, you are allocated 7 draft slots, 1st round drafts are always the best players with the most potential! if you win the Superbowl you automatically get the last round pick of 32 (even though I think as the winner you should get 1st pick)
you can sim to your next pick and from there you have 10 minutes to go through the draftee's and either fill up gaps left by not being able to resign certain players due to salary cap or just released by your franchise, during the season you will need to spend at least 4 weeks scouting players, start from #1 and work your way down, every 4 weeks untick the players you have scouted and do the next 18-21 players...
you can trade draft picks as well
I do this sometimes as I normally win the Superbowl and have a decent pick for my second round! it all depends really! I have a mate who sims the 1st season and comes like "mid table" and gives him a pick of around 10-16 for the 1st round and you can pick up a superstar this way!
I normally sim the rest of the draft after my 4th round pick, rest are quite ****!
you can sim to your next pick and from there you have 10 minutes to go through the draftee's and either fill up gaps left by not being able to resign certain players due to salary cap or just released by your franchise, during the season you will need to spend at least 4 weeks scouting players, start from #1 and work your way down, every 4 weeks untick the players you have scouted and do the next 18-21 players...
you can trade draft picks as well

I normally sim the rest of the draft after my 4th round pick, rest are quite ****!