Now you aren't going to get anything breathtakingly dramatic, because the sports themselves don't really change all that much...but they've put some serious work into each new title, especially over the last few years.
I'd believe it, but is what they do that much that they would need more than one or two old hands, leaving the rest to a train load of 22 year olds? Oh well, anything that might take EA down a notch or two is a good thing.
Do me a favor...rent the last 2 NASCAR games. Or the last 2-3 Tiger Woods games. Or just for kicks, rent Madden 2002-2005.
There are some very substantial differences between different versions, and with competitors like ESPN/Sega producing high-quality titles at a bargain bin price point, the pressure is even greater to produce a better product in order to justify the price differential.
In short, your answer is an emphatic YES.
Though I must say that EA would have been smart to keep the EA Sports Bio around. IIRC, I rented all but one of the 2004 titles...and quite frankly, it kept me pretty loyal toward EA Sports titles. It was a stroke of genius, such that it sucked to see the idea cast aside so soon.
Bring the noise.
Cheers.............