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Dale Earnhardt Jr. is admittedly scared by the daunting task of replacing crew chief Steve Letarte.

He'll leave it up to team owner Rick Hendrick and management at Hendrick Motorsports, and they've got the entire season to find a new crew chief. Letarte was formally introduced Friday as the third and final member of NBC Sports Group's broadcast team for its NASCAR coverage beginning in 2015.

Earnhardt and Letarte have been paired since 2011. Although the duo has just one win together, they've made the Chase for the Sprint Cup championship the past three seasons.

More important, Letarte rebuilt the confidence in NASCAR's most popular driver and instilled a structure around Earnhardt that the driver admits raised his professionalism in the race car.