In my store, there's two steps. You're in the "pipeline" if a TL or ETL is developing you to go to TL interviews. You're "on the bench" when you've passed TL interviews on the Day where a bunch of TMs come interview with one or two STLs and the DTL. Then how long you're on the bench is determined by how quickly a position opens up in the district or in your store. Depending on the store, if you want to stay at your current store it could be a while.