He who hesitates is lost, and even the favorites to win MLB's 2022 World Series have (at least) one area they could clearly stand to improve in advance of the still-far-away-but-approaching trade deadline.
One observation/explanation before we dive in: The majority of these flaws are batters rather than pitchers, but that doesn't mean we're anticipating an unusually quiet summer as far as trading of pitchers is concerned.
With rare exceptions, postseason contenders are always interested in improving their pitching staff before the deadline. In fact, the playoff field expanding from 10 teams to 12 teams figures to create even more demand for starting pitchers and less supply of them than we're used to seeing.