I think the Tigers sign Correa and Verlander. Depending on how the new CBA looks in regards to service time manipulation, Greene and Tork could start on opening day.
In terms of attainable goals, maybe a winning record in 2022 and playoffs in 2023. Next year is kind of an odd year because they are definitely trying to win at this point, but they are also going to start two rookies and they will give Manning a long leash too. OTOH, when we were contenders under DD, Manning is the type of guy he probably would have moved for an established player.