Derby County should be pleased with their summer transfer business but Paul Warne’s failure in one area could cost the Rams. The Rams secured a return to the Championship in 2023/24 following a two-year hiatus. Paul Warne has since strengthened his first-team squad heavily over the last several months. Summer additions Jerry Yates, Kayden Jackson and Ebou Adams have been tipped to be key players for Derby in the 2024/25 season. Ben Osborn has been praised heavily since he completed a free transfer to Pride Park over the summer as well. And after four Championship fixtures, the Derbyshire outfi…