Look at the teams that focus on potential. In the past you might be right, although now a GM must focus on a player that can contribute within a year if they are picked in the lottery. Or they will be looking for a job. Too often a player sits for 3 years and goes to another team through a trade or through free agency while never contributing to the team that drafted them. Of course every player has the potential to improve, but you cannot pick someone anymore just on potential. Substance is the key then comes potential. They must be able to contribute in their first year if they are a lottery pick.