Can't Fix Loser

When a sports team is SO bad that even when things go well for a considerable amount of time, the team reverts back to its loser disposition.

Also is applicable to describe a company.

Yurk: Man, I am so happy the Lions have the first overall pick, We are SO on the right path.

BT: Fam, it doesn't matter who you draft or who your coach is, you cant fix loser. Your team has been tragic for 65 years.

Yurk: Ya but unc...

BT: NO, you can't fix loser. Takes a long time to get rid of that stench, bruh.