The number one pick in the NBA Draft is always going to be under a microscope. When an entire organization thinks of you in such high regard that they are willing to select you over any other eligible basketball player in the country, expectations skyrocket.
The problem with great expectations is the lack of patience. This is not exclusive to the Philadelphia 76ers. This includes every team in every sport who has held the number one pick in the draft.
When a team has the first overall pick in a draft, that team is coming off a bad season.