A weekly look at what the Miami Dolphins must fix:

It is hard to criticize the Dolphins this week following a 38-14 blowout victory over the Oakland Raiders. Miami did nearly everything right and played a full 60 minutes of winning football for the first time this year. Most important, Dolphins third-year quarterback Ryan Tannehill (278 yards, two touchdowns) responded with his best game of the season to quiet critics about his status as the starter.

But even with the big victory, the Dolphins remain sloppy with ball security. Miami had three turnovers -- two fumbles, one interception -- and still beat the Raiders in London’s Wembley Stadium by 24 points. The Dolphins (2-2) can get away with a trio of turnovers against the awful and winless Raiders (0-4). But Miami can’t expect sustained success when turning over the football, especially against the better teams.

Miami's three turnovers came from Tannehill's fourth-quarter interception and a pair of fumbles by tailback Lamar Miller and rookie receiver Jarvis Landry on punt returns. You're not going to bench Tannehill or Miller for making errors. But one potential solution is to replace Landry at punt return after the bye week. Landry's had two fumbles on punt returns, and the Dolphins have veteran returner Marcus Thigpen back on the roster.

The Dolphins have nine turnovers in four games. Interestingly, all of Miami's games so far have been decided by 13 points or more. Turnovers were a factor in the two losses to the Buffalo Bills and Kansas City Chiefs, but were a non-factor in wins over the Raiders and New England Patriots.

According to data from ESPN Stats and Information, 36.2 percent of teams that start 2-2 make the playoffs. The Dolphins must reduce turnovers in order to increase that probability of getting into the postseason.