The economics of integrating alternative crops (corn, wheat, and/or soybeans) into existing Texas Coastal Bend crop rotations comprised of cotton and grain sorghum are investigated. Crop scientists' and area producers' subjective opinions regarding yield outcomes are combined with information regarding future crop prices, government farm program provisions, macroeconomic factors, and representative farm characteristics to examine relative merits of eighteen alternative crop mixes over the 1986-1990 period. A stochastic simulation model is used in analyzing the uncertain aspects of crop yields and prices. Prevailing rotations comprised of cotton and grain sorghum generally outperform (on the basis of profit maximization) other rotations including the challenging crops. This dominance is observed over a wide range of plausible economic/technological development scenarios.