The trade might be more comparable to dealing Morneau and buying prospects in the form of picking up a significant portion of his contract. As for prospect grades, I am not sure how what it means to be a B prospect. Baseball America uses a numbered grade system. John Sickels uses letter grades. Below is his definition. Grade A prospects are the elite. They have a good chance of becoming stars or superstars. Almost all Grade A prospects develop into major league regulars, if injuries or other problems don't intervene. Note that is a major "if" in some cases. Grade B prospects have a good chance to enjoy successful careers. Some will develop into stars, some will not. Most end up spending several years in the majors, at the very least in a marginal role. Grade C prospects are the most common type. These are guys who have something positive going for them, but who may have a question mark or three, or who are just too far away from the majors to get an accurate feel for. A few Grade C guys, especially at the lower levels, do develop into stars. Many end up as role players or bench guys. Some don't make it at all. By his definition, there are very few A level prospects. Probably less than 30. Two prospects involved in trade discussions this week are close. Jacob Turner entered the season as a fringe A level prospect and Randall Delgado entered as a strong B level prospect. Turner's status may have dropped. Of the players the Astros received only the outfielder Grossman is probably at the B level and very similar to Aaron Hicks. By the definition above, I don't think either of the pitchers would be considered B level prospects.