Using the Runs Created formula, we can guestamate how many runs it's cost the Reds playing Jiminez over Freel.
Currently, Freel and Jiminez have created 8.0 Runs (Freel 4.5, D-Lo 3.5).
If you multiply Freel's RC per TPA and multiply that by the number of Jiminez's TPA's you get 7.73 RC. If you do the same for Jiminez for Freel's TPA's you get 2.04 for a total of 9.77.
The Reds have lost just under two runs starting Jiminez over Freel. Over the course of the season, that's just under 22 runs the Reds would lose (based on current numbers of course).