[We got comfortable. We got complacent.]
Add to that moral decay and you have what defeated the Roman Empire from within.
Seriously guys. I put FNV up for a while. I am on Rome 2. I can't quite get to 100BC quite right, as the House of Junia in Rome, but I keep replaying trying different approaches. Obviously I have to fight the Estrucians right away, but attacking Syracuse too soon didn't work, same with attacking Venetia.
Amazing how that works, huh?