I'm working on a Raiders franchise right now too. I've gone through Schaub in the first weeks until he was throwing INTs like crazy, to Carr who got injured in his third start, to Schaub who got injured in the next game, to McGloin who lasted me four weeks before getting injured, to Carr who is now my starter. Quite a whirlwind at the QB position, but I love the receiving corps. Jones is a solid possession guy. Moore is great for speed. Streater is a great slot receiver, and having Little come in and out as my fourth is just unstoppable. MJD is either hit or miss, but I think that has to do more with my O-Line which has had a few injuries as well. Their defense is solid and usually backs me up very well (I SuperSim the defense). If I could suggest anything to you, throw McFadden into the fullback slot in a few packages and you can do some interesting stuff with him. He has great acceleration to get out of the backfield very quickly.
Just reached the playoffs going 12-4 in the first season on All-Madden. Got Carr to about an 83 OVR now, and have my first playoff game against the Patriots. A little worried because we didn't play well at all against Denver in Week 17. If Carr is cold, he's cold. And if I don't have a productive running game, the offense is usually dead in the water.
My only real complaint about this game is that the receivers barely have a chance on anything long. You have to seam it perfectly leading the pass on, or it's batted down or intercepted. Not to say that's completely unrealistic, but I feel as though receiver's never, ever have a chance to just jump up and grab the ball like real life. As soon as the ball arrives within the secondary's radius, they immediately have the awareness and ability to just jump and turn around to make the interception, even though in real life the receiver is usually the one going for the grab even if it's a lobbed pass. Other than that, I love it on PS3. Played on Xbox One at my buddy's place and honestly think it's ten-times worse. The graphics and presentation are better, but the way it plays is pretty brutal.
Also, in my first franchise with the Browns, I got Manziel to like a 93 OVR by the end of the season, and broke the NFL passing touchdown record with 8 total touchdown passes (although that was on All-Pro while I was getting the hang of things). Will probably end up doing a Browns franchise again on All-Madden with some better sliders to give myself a challenge, but might stick with this Raiders one for awhile, then maybe do a Jaguars or Lions franchise. A little ticked off with how fast these guys progress though. Might have to give myself some in-house limitations on improving players, especially quarterbacks and their accuracy ratings.
EDIT:
@Toe: I LOL'd at your Charlie Whitehurst post because I had the exact same thing happen to me in my Browns franchise on All-Pro. He literally tore apart my secondary and I was baffled because he is like a 68 OVR.