Oakland won 68, 69, and 75 games from 2015 to 2017. People were wondering out loud if Billy Beane had lost it. They then put up consecutive 97-win seasons.
The Rays were under 0.500 for 4 straight years. Nobody saw them as contenders in 2018, but they've won 90 and 96 games the last two years.
The Twins lost 103 games in 2016. The last three years they've won 85, 78, and 101 games.
The Cubs won 73 games in 2014. They gave Jon Lester a big contract that offseason, even though everyone thought they were a couple years from contention. They won 97 games the following year and the WS in 2016.
The Braves won 72 games in 2017. Nobody saw them as contenders in 2018, but their young guys pushed and they've won consecutive division titles.
The point I'm trying to make is that this team isn't Miami or Baltimore. There is a plethora of very talented MLB-ready talent. It wouldn't be that surprising if the lineup, supplemented by a piece or two this offseason, ends up being one of the better groups of position players in baseball this year. It's not the most likely outcome, but it wouldn't be shocking in the same way it would be shocking if Baltimore ended up having top-10 lineup.
If you have an opportunity to add 2020 wins while subtracting nothing from the future, you do it. There is no reason to sit on a 70M payroll in 2020 if there are opportunities to add 30M in short-term deals that pushes the win projection up by 4-5. Probably it won't have playoff implications. But there's a small chance that it could. Winning 83 games on a 70M payroll should be a fireable offense.