A month into the season Jaguars rookie Denard Robinson has more lost fumbles than yards of total offense. The fifth-round pick billed by the Jaguars as an offensive weapon has accounted for minus-1 yard through the team’s first four games all losses. When asked about Robinson Thursday Jaguars offensive coordinator Jedd Fisch reviewed Robinson’s gaffes with an obvious tone of frustration. “We’ve got to figure out what Denard can do best” Fisch said in closing. The chance for Robinson a standout dual-threat quarterback at Michigan to contribute early was presented. Injuries to quarterback Blaine Gabbert running back Maurice Jones-Drew receiver Mike Brown and tight end Marcedes Lewis as well as receiver Justin Blackmon’s four-game suspension provided an opportunity for Robinson to emerge as a key component in the offense. The Jaguars clearly needed a boost. The offense ranks last in yards per game at 224. That’s 50 yards a game behind 31st-ranked Tampa Bay. The Jaguars are also last in scoring with 7.8 points a contest. There are 24 teams in the NFL averaging at least 10 more points a game. Still despite the glaring need for a playmaker to emerge Robinson’s trouble with ball security has kept him largely off the field. He’s played 13 offensive snaps this season logging five carries for minus-1 yard. In a 45-17 loss at Seattle Robinson lined up at quarterback in the wildcat formation only to lose a fumble without getting touched by a defender. Once the NFL told the Jaguars to drop the offensive weapon title the team listed him as a receiver. He’s been targeted once dropping a screen pass last week in a 37-3 loss to Indianapolis. “We’ve got to get Denard up to speed on the things that we’re counting on him for” Jaguars coach Gus Bradley said. “He’s his own worst self-critic.” Are Robinson’s troubles stemming from rookie jitters that he’ll work through? The Jaguars could begin to find out when they travel to face St. Louis (1-3) on Sunday. The Rams rank 23rd in total defense and 28th in points allowed. “That’s what it is” Robinson said. “I want to make something happen so bad I’m pushing myself instead of relaxing and making things happen. I know young players go through it. I want to make a difference on the team so bad that I’m hurting myself.” The offense’s veterans remain confident in Robinson but do see him trying too hard. They believe the position change Robinson is undergoing is incredibly difficult.