First, I didn't say the offense wouldn't get worse. Just not significantly worse IMO.
But I say the defense can improve because of what was mentioned earlier in this thread about the team basically not practicing defense, and I'm operating under the assumption that statement is true. If it's not, then moot point.
I have to believe practicing say 50% of the time vs basically 0-10% would have to make a noticeable improvement. Now if they already work on it 50% of the time, maybe working on it even more may not make as much difference. The law of diminishing returns.
But I really have no idea how much time is spent in practice, or what Fran thinks or knows. I'm just a fan, and have zero inside info.
As for the talent factor, that's a different discussion, but I'll agree that we may be limited by an apparent lack of foot speed. I think we have plenty of talent (i.e. skill) but not a lot of quickness. More quickness and athleticism would surely help.
My entire point is that having a good defense doesn't mean your offense has to stink or vice versa. Sounds like we agree on that point.