I believe next year is closer to an "all-in" year rather than a "start over" year.
so we keep (at least most of) our rotation.
Our excess is at promising minor league OFs, so we should consider moving one of them in a trade to help us elsewhere. Frelick and Chourio are the ones I don't want to lose.
We could use a corner-infielder/DH. If we can replace Tellez or move Urias to a 2b/utility role, that would be great.
McCutchen and Davis should be gone. Frelick replaces one. The other is replaced by a signee or someone from the farm. If we can resign Taylor Rogers to a decent contract (2 years @ 7M or less), we do; otherwise we find the best guy we can at that price.
The improvement comes from our existing pitching (which has underperformed this year), or the marginal changes we make.
If Frelick get's promoted and hits .290, and the pitching performs, I think we're in great shape.