More voices have joined the conversation, pointing out the advantages of a patrol frigate over the single mission LCS. From: http://hgworld.blogspot.com/
MicroSystems Integration used historic U.S. Navy data from the 2010 Navy Program Guide to calculate the expected frequency for each of the 19 missions for the LCS-type ship during an average year and then assigned the preferred ship to each.
The analysis determined that out of the 19 missions traditionally performed by small surface combatants, seven indicated the Patrol Frigate was the preferred ship. When compared against a non-missionized LCS, (just the seaframe, no mission systems), the Patrol Frigate was the preferred ship in 15 missions.
To compare operational costs (fuel and personnel), six modeled scenarios were run based on proposed scenarios in the CSBA paper, ranging from securing loose nuclear weapons to maritime interdiction. For those two scenarios, the Patrol Frigate reflected an operational savings of approximately 29 percent and 33 percent, respectively, when compared to an LCS-type ship. In all six scenarios (the two above and convoy protection, maritime stability operations, counter piracy/counter crime, and humanitarian assistance/disaster response), the Patrol Frigate reflected an operational savings of approximately 26 percent.