Other mistake: In one of the games, they show the scoreboard. In two different innings it says one for number of runs. Then they move over and show the total number of hits for each team, and it shows 3 instead of two.
When Jefferson is forced to walk home alone, he is wearing blue jeans. When he hides in the cement things to use his inhaler, it shows him wearing khakis. Then, when he gets jumped right after by the guys on the bikes, he is wearing jeans again.