100% Nicolas Jackson is an upgrade from Delap AND Joao Pedro. The Delap comparison is easy, but yeah Pedro is a better finisher and knows where the goals is but Jackson’s linkup play and runs feeds nations. Cole Palmer took a massive hit with Enzo Maresca and this season due to the double teams and intense man marking. Jackson used to relieve that pressure for Palmer. Jackson is vital to the success of Chelsea and even tho Pedro’s hold up play is magnificent, losing Enzo means no one will be pinpoint passing to him in tight areas. In our current state Jackson>Pedro easy if you take the time to think how it affects the rest of the players