Jim Schwartz gave embattled kicker David Akers a public vote of confidence after he missed his fifth kick of the season in Thursday’s 40-10 win over the Green Bay Packers, but the Detroit Lions are planning to work out kickers next week as they weigh their options at the position. Akers, who signed a one-year deal to replace long-time kicker Jason Hanson in April, has made just 15 of 20 field-goal attempts this year and the Lions rank 29th in the league in field-goal percentage. On Thursday, Akers pushed a 31-yarder wide right just before halftime, which prompted a pep talk from Schwartz. “I told him after halftime that if we need a game-winner, we’re going to put him right back up,” Schwartz said. “We’re not going to be going for it on fourth down.” Akers also has missed kicks from 45 and 47 yards this year, has had two more tries blocked due to breakdowns in protection, and the Lions have failed to convert two other attempts after bringing their kicking unit on the field.