Dean of the Texas school of rowdy, good-time songwriters, Jerry Jeff Walker is surprisingly bland in this follow-up to his last album, the spirited Live at Gruene Hall. Walker admits in the Navajo Rug liner notes that he hates to do studio records (”That’s like tryin’ to make love with all your clothes on”). But the real problem is that he relies on too many borrowed songs, only a few of which are worth borrowing. And with the exception of the pessimistic ”Blue Mood,” his original material — a couple of love songs to his wife, a silly salute to baseball star Nolan Ryan — is a ho-hum collection of B-sides. Pick up the 1989 live album instead.