When you watch teams who are predicted to make the playoffs (Sea, SF, Den, NE, GB, Hou, Atl, Cin) they all look like they are ready to start the season tomorrow. Whether they're running "vanilla" or "complex" they are executing like they're expected to by their coaches.
SF hasn't scored a TD yet, Denver got destroyed last night and didn't show much the first week, GB looked very shaky against the Cards last week (albeit, better against the Rams), and the Falcons 1st team D looks like Swiss Cheese.
Just because they might be able to put one or two drives together doesn't mean they're ready for the season yet. No one is. It's preseason...everyone is going to look shaky and some look less shaky than others (like CLE, BUF,CIN, and SEA). Every team has their own separate agenda which will affect their plan of action through these first four weeks. That's why no one should be trying to correlate anything at this point.
I will agree with you on the effort deal, though. If we're going to look like spanked ass, might as well try hard looking like spanked ass. Making mistakes is acceptable right now and possibly (dare I say), encouraged to some degree. But the entire team as a whole against Philly looked flat and if the whole team is like that, there's really not a whole lot you can teach and improve.