Well I swear I think a few posters here could've had more success than the all-star trio of wang/snow/capuano, so saying Lou was better than the previous regime means little to nothing.
That said, we can debate whether or not Trotz would've have come here without Lou as GM, but either way Trotz, and not Lou, was the #1 reason we had the success we did those 1st 3 years under Lou (in case you thought Lane is just having "bad luck"). Let's remember that team was 90% snow's roster (and is still over 50% his) so we can't give Lou too much/really any credit in terms of roster building.
But yes...His time is done now, and the sooner Malkin addresses this the sooner we can start fixing things and get back on track.