The Rays could be dangerous again as soon as next year. Archer, Cobb, Odorizzi, Smyly are an elite top-4, and that leaves Karns, Ramirez, Andriese Colome, Moore and Guerrieri as depth.
The foundation of the position players is Forsythe, Kiermaier, Longoria, and Souza, who should all be above average. Guyer, Casali, and Jaso should all be nice pieces too.
Something like:
C - Casali
1B - Jaso
2B - Forsythe
3B - Longoria
SS - ??
CF - Kiermaier
RF - Souza
LF - Guyer
Archer
Cobb
Smyly
Odorizzi
5th guy
If they can spin a few extra arms into a shortstop, second catcher, and platoon partners for Guyer and Jaso, there's 85+ win potential there. Unfortunately the terrible payroll means everything will have to go right for them to add the ~4 pieces they need, and any serious long term injuries will sink them.