tmfiv mentioned NBA 2K. I love how that game handles expansion/relocated teams. If you're lazy like me, and don't want to make sure that the logo on your alternate away jersey and cap match, you can search through the (soon to be) 1,000's of designs that others have made. Choose one and Download. Boom! Done!
I'd love to move the A's to Vegas, but, it's just too much work.