I'm simply disputing the notion that Klentak hasn't made the big club better (especially since it's only Year 2 of any active effort to do so). The four free agents he signed last year improved the team. Even the thing we now see as a mistake (Santana) improved the team (and fetched a very solid trade return). This year's moves so far have improved the talent base. That players might regress and, they need more talent: both true. If the 2019 team is not a legit playoff contender I'd say he's on the clock but I wouldn't say he should be fired (would that big a course correction really make things better for 2020?).
Oh, also I think he hired a good manager (some will disagree!) and while the jury is still out on the execution and value of the analytics, it sure did need doing.
But the big mistakes were both already made before last season - the ones Amaro and Gillick made, and, we can now say in hindsight, Klentak overestimating how much he was left with (including his misjudgment of Hoskins' ability to play LF), and the value of "seeing what we have." But there still wasn't really any way to speed that up without committing resources (salary and giving up guys in trade).
And yes, I don't buy the "report."