The Seahawks' offence must improve in the second half.

After shocking the Denver Broncos

 the Seattle Seahawks are off to an unexpected 1-0 start to the season.

Many things contributed to Seattle's improbable victory 

on Monday Night Football,

including Geno Smith's outstanding first-half performance.

Geno Smith shone the brightest in the evening's spotlight

With three touchdowns on their first four drives,

the Seahawks offence was sailing over the Broncos' solid defence. 

If not for a stuffed quarterback sneak

on fourth down in the middle of Denver's red zone,