

Or Brian could just be leaving because the performance of the 25 car is just not there. Look at the history of the 25 car, it hasn't had a consistent season since Kenny Schrader drove it over 10 years ago. Although it had a brief stint as the 50 car to celebrate NASCAR's 50th birthday, the history is right there for all to look up, it hasn't been a winning team, or even a contender, for years. I also think Rick Hendrick gave up too early on Ricky Craven (who took over for Schrader when he left) after his head injuries when he drove that car, and the success and performance has steadily been on a decline since then.
Casey Mears on the other hand is making a good decision leaving Chip Ganassi racing. Although Ganassi's Cup program has gotten better over the last few years it seems to have leveled off, even Jammie McMurray left (although that doesn't seem like a good idea right now). Mears' performance has not been there on a consistent basis, and it is just not working at Ganassi Racing. Time to move on.
Where will they end up? Driving a Toyota is the best bet, but don't count out the empty 88 seat at RYR - although UPS might not be back as the primary sponsor. Unless the Toyota teams lure out some big names to fill their seats drivers like Vickers and Mears (disgruntled young guns and future young guns in Busch) will end up driving Toyotas next year.