The reason the Army does not launch an operation there is because of the propaganda done against the military (the Baloch nationalists use Musharraf and Bhutto's military operations as one of the reasons for their disagreement with the Federation.) As a result, the government has decided to use a para-military force under the purview of the Interior Ministry to handle the security situation.
There is no quick fix here. The situation will continue like this. It is not something that is boiling over. With the low level insurgency there, some losses will be taken however as long as the economic activity is not being suppressed, which it is not, it can be managed. Actually the best antidote to militancy in Balochistan is economic activity. The more Baloch are engaged, the less disenfranchised joining BLA and the likes. This is not a short term fix though.