[moved from GDT, as this is probably more appropriate here]
...which is interesting, because Gunny took a discount to re-sign for 2-years, and most people (I'd think) would expect JBo to return for at least another season. It's always good to have depth, but having 8 legit NHL D-men on the NHL roster is unsustainable. I think for this year, the Blues will be just fine sending down Mikkola...but next year (assuming Petro is re-signed) something's going to have to give. Maybe J-Bo isn't brought back afterall...?
I still think Dunn and Faulk are redundant on this roster, so maybe this problem is left for after next season when the Expansion Draft will solve this problem on it's own. Mikkola may just have to marinate in San Antonio for another 1.5 seasons, where hopefully he can be given #1 D-man minutes.