Michael Stackpole, a well-established science fiction author, began writing Battletech novels in the late 80's and soon became one of the "cannon" writers, helping to guide the univere's storyline. While I think Keith and Charette are slightly better writers, Stackpole has an epic sweep and a "bigger picture" eye that makes him the go-to writer for Battletech.
Natural Selection is his follow up to the Blood of Kerensky trilogy. Natural Selection follows attempts by crusader elements within the clans to repudiate the Tukayyid truce through the use of the "Red Corsair". The story, like all of Stackpole's, does not take place in a vacuum, and some knowledge of the characters is assumed. That said, it reads very quickly and is very enjoyable.
I would be remiss if I didn't make some character commentary. I like Kai Allard, but detest Phelan Kell Wolf Ward (ugh with his name changes). He is a ridiculous and unbelievable character. Captured freebirth warrior adopted into the Wolf clan and becomes a Khan? Hope I didn't spoil anything here, but, to whoever runs Phelan as their player character in the game (and I know for a fact someone does), get over your munchkin ego and give it up!
Still, I can suffer through the interminable Kell for the story development. Worth picking up for the continuing universe history, and for Stackpole's vision.