The Cincinnati Reds have three outfielders that could be their entire bench, if they are willing to let their starters play other positions. Outfielders Desmond Jennings, Ryan Raburn, and top prospect Jesse Winker all have the lead for the bench spots heading into the spring training games. Winker is the only left-handed hitter of the three.
The initial issue with using these three as the core of the bench is that none of them can play shortstop. Raburn can play first and third well enough, and even second in a pinch, but none of them can play shortstop.