I'm going to do my best to NOT be a dick. But, sadly, that's the story of my life.
1. Multiple EE are going to be a thing of the past. With the threads noting the non-B6 making runs, talent will be more spread out. THAT'S what 3.0 was designed to do. Some teams might have 2 but you're not going to see 4-5 again. If I'm wrong, I'll print this post and eat it next October.
2. Assuming #1 is correct, you're talking about taking on 1, maybe 2 if you're just not paying attention, non-serviceable player. I don't think that's a huge obstacle. Maybe it is, I haven't played D1 since 2006 and I wasn't an "elite" coach.
3. Success at D1 should be hard. Sustained success at D1 should be even harder. If it's easy, what's the damn point? People who like easy play Madden on Rookie and try to set records. Who cares about them?