Playing Poole more might enable them to play Steph off the ball. They were running a ton of pick-and-roll, way more than I remember them ever doing. It worked when Boston played drop coverage like Steph was Jrue Holliday, and repeatedly lost him in transition, but those looks dried up when Boston cleaned that stuff up defensively. At that point, they're left with Steph hunting mismatches, which gums up their offense and isn't really how the Warriors like to play.
Back in the day, in response, they'd run everything through Iggy to get Steph off the ball. They should not do that in 2022. Poole gives them the extra ball handling they need, and they could try to
test how Marcus will be able to stay with Steph off-ball, but it's hard to see them withstanding that defensively, especially if it's Looney coming off the floor.