People worry too much about "superstars." You need some...but on a successful team most of your team is going to be workman-like guys developed, coached, and playing to ten-tenths their ability. At most, these days, only 5 of your roster is going to be regular all-pros.
Get that foundation established first, then go after those 5 all-pros, if you haven't drafted them already (e.g. Tre White.)