Does it make sense for 49ers to trade for Raiders star edge rusher Maxx Crosby?

The 49ers need to upgrade their defensive line.But at what cost?There is speculation that the Raiders could trade edge rusher Maxx Crosby, who averaged nearly 10 sacks per season over his seven NFL seasons. He is a five-time Pro Bowl performer who underwent surgery last month to repair cartilage damage in his knee.If the Raiders are open to trading Crosby, the 49ers’ first-round pick (No. 27 overall) probably would not be enough to get it done. The 49ers might have to throw in picks in the second and third rounds, too.Such a trade would hit the 49ers twice. They would give up the potential to add young players under fixed salaries for the next four years in order to add Crosby, who is scheduled to make $30 million in base salary in 2026.The 49ers should receive a boost with the returns of Nick Bosa and Mykel Williams from season-ending knee injuries. They also need their other young players, such as Alfred Collins and CJ West, to take significant steps forward.Last year, the 49ers made up for lost time with the selections of Williams, Collins and West within the first three rounds.The 49ers made two huge trades that greatly impacted their drafts in 2022 and...