It doesn't look all that bad. I mean, your entire starting lineup won the World Series two years ago except for the second baseman (I know there are key bench pieces missing, like Leon, Kinsler, and MVP Pearce -- who replaced Ramirez, the Opening Day #3 batter).
It's also 4/5ths of the same rotation -- I know, big IFs, but who honestly thought going into '19 that the starters wouldn't be a strength? Price and Eovaldi were both coming off the best clutch pitching in their careers, and expectations were they had figured it out and would continue to build and contribute. Sale was the most questionable, and even he had blown away the last three batters of the Series. Porcello took a step back and ERod a step forward; those are normal year-to-year developments... but lengthy injuries to a team's top three starters are not.
Yes, we're still missing an established closer like Kimbrel, but Workman's '19 WAR of 3.2 was better than Kimbrel's '18 of 2.3. It may be unreasonable to expect Workman to repeat a career year, but he has to be better than Kimbrel's '19 WAR of -0.5.
Some fans are down on Peraza but he's still 25 so let's give him a chance for a bounceback. He may not be Alomar, but he's not Nunez, either; Peraza had a 2.3 WAR in '18; Nunez was -1.1 in '18.
As moon, notin and others have pointed out, a big problem last season -- and I agree a big concern right now -- was/is pitching depth and a reliable bench... underrated components of a winner, the #20-30 roster guys. Who can forget Pokey, Mientkiewicz, Roberts and Pesky's "Leskanic, you sonabitch!" Now please help me forget Owings, Gorkys and Cashner.
Bloom hasn't altered the core, but made a lot of alterations to change the extra seats in the dugout and bullpen. Maybe that's the plan.