Being in the building has also given Bosa a first glance at his new teammates on the defensive line. AdvertisementAdvertisement AdvertisementThis offseason, he's the player who's caught Bosa's eye. He's got a bag of tricks in pass rush that you can tell he's been coached well. The 49ers need pass rush badly after their unit ranked 32nd in the NFL last season in sacks. It's a good sign that he's already drawing praise from his teammates ahead of the season.