49ers grades in sloppy loss to Jaguars as team faces breakdowns in all phases

The red pen is getting a workout today.Not much went right for the 49ers on Sunday, as they experienced breakdowns in all phases of the game in their 26-21 loss to the Jacksonville Jaguars at Levi’s Stadium.You name it, and the 49ers did not do it well while losing their first game of the season.Here is the 49ers’ report card from their Week 4 game against the Jaguars:Rushing offenseAgain, the 49ers had a difficult time getting anything going on the ground. They managed just three first downs rushing. The 49ers averaged 3.5 yards per carry.Christian McCaffrey carried the ball 17 times but managed just 49 yards. The 49ers continue to be the only team in the NFL without a rushing touchdown this season. Brian Robinson was mixed into the action a little, as he carried five times for 21 yards.Defenses are putting a priority on taking away the 49ers’ running game, and they simply cannot come up with the answers to solve the puzzle.Grade: D+Passing offenseThe passing game looked completely out of sorts from the beginning. Brock Purdy was off the mark with his throws, and his targets did not help him by failing to latch onto passes that hit their hands.Purdy...