Morosi: Tim Lincecum can't be counted on

After another rough outing for Tim Lincecum, the Giants need to add a starter, writes Jon Morosi. .

FOXSports.com's Jon Morosi wrote the San Francisco Giants are the class of the National League West, but because of Tim Lincecum's struggles, they need to add a starting pitcher. 

• San Francisco can't count on Lincecum returning to form this year, as his 6.08 ERA is the second-worst mark among qualifying NL pitchers. 
• The Giants need an insurance policy to complement Matt Cain, Ryan Vogelsong and Madison Bumgarner, who form one of the best starting trios in all of baseball. 
• Morosi writes the Giants don't need one of the big three starting pitchers -- Cole Hamels, Zack Greinke and Matt Garza -- available, but mentions Milwaukee's Marco Estrada, the Padres' Clayton Richard or Seattle's Jason Vargas as making sense for San Francisco.
• The Giants could also use a right-handed outfield bat, as the non-waiver trade deadline approaches. 

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