1. Getting on base
Rhys Hoskins is very good at drawing walks. So is Bryce Harper. In fact, the entire offense in 2020 (which is almost identical to the one that will be on the field on April 1) was tied for 3rd in on-base percentage and had the 8th most walks last season. They also hit for average pretty well too. This will be the Phillies' key strength and strategy for winning games this season.
In the shortened campaign last summer, the Phillies produced the 9th most runners in scoring position (589 plate appearances) and turned that into the fourth most runs (227) and third most RBI (213) of any MLB team. Their RISP batting average was .278 and their 25 homers in those predicaments is the third most in baseball.