General manager Phil Emery’s proclamation that the Bears will not negotiate contract extensions during the 2013 season is a masterstroke of simplicity prudence and fairness: You play — you get paid; you don’t — you won’t. It’s a philosophy that avoids more problems than it creates — especially on a team that was 7-3 and 7-1 in the middle of the last two seasons and failed to make the playoffs. When 53 players have a hand in the outcome it’s best to wait until the dust settles to dish out the rewards. In theory the worst possible outcome is paying your quarterback $120 million after winning a Super Bowl like the Ravens did with Joe Flacco in the offseason. ‘‘That’s a problem I look forward to’’ Emery said Wednesday as the Bears opened training camp. Unfortunately Jay Cutler could present Emery with a problem he doesn’t look forward to. If Cutler fails this season he’s gone. If he wins the Super Bowl he’s worth $100 million or more on the NFL market. But if Cutler’s history is any barometer he could land right in the middle after the 2013 season — a lot of passing yards and touchdowns but no playoff victories. Then Emery’s quandary would be a little more risky. Is he willing to invest millions in a quarterback who has a great arm but can’t carry a team on his back? We’re talking about a quarterback who is revered by NFL evaluators yet has a mediocre 84.0 career passer rating; a quarterback who has thrown for 4526 yards and 27 touchdowns in a season and is 26-13 as a starter the last three regular seasons but has only one career playoff victory. That’s why this is the biggest season of Cutler’s NFL career. But forcing Cutler to play for his next contract is all the pressure Emery was willing to put on his quarterback. Asked what he’s looking for from Cutler this season Emery wouldn’t bite. ‘‘It’s not just about Jay’’ he said. ‘‘We have a number of players that are [on] the last year of their deal. So it’s the same for all of them.’’