TAMPA Kaleb McGary Jersey , Fla. (AP) — The Tampa Bay Buccaneers have made it official: Byron Leftwich is the team’s new offensive coordinator.The Bucs announced the hiring Wednesday, a week after incoming coach Bruce Arians said the ex-NFL quarterback would call plays next season and Clyde Christensen would serve as quarterbacks coach.Christensen’s hiring also was announced Wednesday, when the Bucs said former player Antwaan Randle El is joining Arians’ staff as an offensive assistant.Leftwich played 10 seasons in the NFL, entering the league as a first-round draft pick of the Jacksonville Jaguars in 2003 and also spending time with the Atlanta Falcons, Pittsburgh Steelers and Buccaneers.He began his coaching career in 2016, working as an intern coach with the Arizona Cardinals. He was hired as the club’s quarterbacks coach in 2017 and promoted to offensive coordinator during the 2018 season.Last week Kendall Sheffield Jersey , Arians called Leftwich “a rising star in this business” and said he’s confident Bucs quarterback Jameis Winston will benefit from working with the combination of Leftwich and Christensen, who’s been an NFL assistant for 23 seasons.The Bucs also announced 15 other additions to Arians’ staff: Tim Atkins (defensive quality control), Chris Boniol (specialists), Mike Caldwell (inside linebackers), Mike Chiurco (assistant to head coach), Rick Christophel (tight ends) John Cominsky Jersey , Larry Foote (outside linebackers), Kevin Garver (wide receivers), Joe Gilbert (offensive line), Cody Grimm (defensive/special teams assistant), Amos Jones (assistant special teams), Todd McNair (running backs) Qadree Ollison Jersey , Nick Rapone (safeties), Kacy Rodgers (defensive line), Kevin Ross (cornerbacks) and John Van Dam (offensive quality control).Defensive coordinator Todd Bowles, special teams coordinator Keith Armstrong and assistant head coach/run game coordinator Harold Goodwin were hired last week. Perhaps one of the most stressful positions in the game of football, much is expected of an NFL quarterbacks. They tend to get all the credit when things go right and all the backlash when things go wrong. But hey, that’s why they get the huge contracts. When things look bleak and your team needs someone to turn things around Ed Oliver Jersey , people look to the quarterback. They’re expected to lead their team to success. But as we all know, that isn’t the case for a majority of signal callers who enter the league. There are only a handful of quarterbacks right now that are considered elite. What separates them from their peers is not just their high level of play but their ability to march a team into the playoffs. Naturally not all QBs can do this on a regular basis and some have yet to do this at all.There are a number of quarterbacks currently in the NFL who have either failed to win a playoff game in their career or have yet to lead their team to a playoff berth. In most cases those who fail to rally their team beyond the regular season don’t tend to stay in that uniform very long. And while it does take an entire team, not one man, to get to the playoffs, the quarterback – along with the head coach – will almost always take the brunt of the blame in these situations. Some of these players are aging veterans with limited windows of opportunity, others are young talents with bright futures and some are backups who’ve lost their starting jobs years ago. Nonetheless they all share one thing in common. That elusive first playoff win.* We're looking at QBs who have extensive starting experience (more than a couple of games) and have more than two years experience.