I said two-way guard, not combo guard. Two-way as in being effective or can play on both ends of the flloor - offense and defense.
I doubt it'd effect Martin and Garcia's minutes due to our roster versatility... Ron can play every spot but center, Wells can play the 2/3/4, Martin can play the 2 and 3, Garcia can play the 1/2/3. That's many times through-out the season they'll be playing at different spots.
Bibby's large minutes don't matter? Look at the last two playoffs and how he played there compared to others. Antonio Daniels and Bruce Bowen or not, the large amount of minutes and lack of a real back-up since the 2nd half of the 2004 season - has effected his play. Regardless, you should have an adequate back-up at least for as many of the 5 spots you can.