As much as finger-pointing fans want it to be, this isn't a 'David Bell thing', it's a MLB thing.
Tom Verducci (SI.com) wrote about it last week: Relief pitching has reached a tipping point in MLB.
As managers go to bullpens earlier and earlier, and as the use of openers grows, workload is catching up to bullpens.
ML relievers have a higher ERA (4.50) than starters (4.44) for the first time since 1969.
Bullpen innings pitched:
Reds: 283 (20th)..............ML average: 305.........NL average: 294
Times using relievers:
Reds 283 (T-10th).............ML average: 273............Braves: 306 (1st)
Times relievers pitched multiple innings:
Reds: 87 (T-7th)...............ML average: 77..............Orioles: 131 (1st)
Times relievers pitched on consecutive days:
Reds: 61 (6th)..................ML average: 50...............Rockies: 69 (1st)
As you can see, the Reds certainly have leaned heavily on their bullpen. But all ML teams are leaning on their pens.
Most innings pitched per game by starters:
Reds: 5.4 (T-11th)............ML average: 5.3..........Nationals: 5.9 (1st)
Most pitches per game by starters:
Reds: 91 (T-8th)................ML average: 88...........Nationals: 95 (1st)