"As far as talent goes, we had pretty much everything, and I think that's why this year was so successful"

Carrie Underwood is referring to the success of her group or group in the past year. She believes that the reason for their success was due to the reality that they had a great deal of talent. She thinks that having a variety of different talents was crucial to their success. She is implying that having a range of different abilities and capabilities was essential to their success. She is also suggesting that having a range of different talents was more crucial than having a couple of really skilled individuals. She is suggesting that having a variety of various talents was the crucial to their success and that it was the combination of these skills that made them effective. She is likewise recommending that having a range of various talents was more vital than having a couple of extremely gifted individuals.