Joe Pisapia strongly advocates picking up St. Louis Cardinals outfielder Jordan Walker, who's off to a scorching start batting .389 with a .500 OBP and impressive OPS over 1.000 through five games. Walker's underlying skills show notable improvement: he's hitting the ball hard consistently, getting the ball in the air, limiting strikeouts, and demonstrating a refined swing resulting from offseason adjustments. Pisapia expects Walker's strong start to push him higher in the lineup and potentially hit cleanup if Nolan Arenado is traded. Given the early stage of the season, Pisapia recommends being aggressive in bidding for Walker, suggesting spending around 8-10% of total FAAB budget to secure him, as he's likely to be a highly sought-after pickup with significant upside.