Any advice for a 1st timer!

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I'm a first timer! I need advice-Please!

Do I have a good team?
Do I trade Brian Roberts and Adam LaRoche for Ian Kinsler and Jason Giambi?

C: Joe Mauer
1B: Derrek Lee
2B: Brian Roberts
3B: Adrian Beltre
SS: Carlos Guillen
2B/SS: Yunel Escobar
OF: Alex Rios
OF: Melky Cabrera
OF: Pat Burrell
OF: Josh Willingham
OF: Josh Hamilton
DH: David Ortiz
Util: Adam LaRoche
Bench: Milton Bradley
Bench: Casey Blake
Bench: Mike Napoli