Bottom Line -- This team has more talent without Manu than last year's team with a subpar Manu. Gooden, Mason, and even Hill are big upgrades over last year's squad. (All this assumes Duncan can play at a decent level in he playoffs, of course.)
Put Gooden in the starting lineup and go for a physical, scoring, rebounding front line. Gooden can also take up the scoring slack and allow Bowen to play more. Pop then takes the chains off Duncan and lets him go all out.
The key will be establishing some kind of dynamic between Duncan and Gooden -- it may not happen but its their only realistic chance.