JACKSONVILLE, Fla. _ Bengals founder Paul Brown, who almost didn’t sign his franchise agreement when he got a good look at the mechanics of the AFL expansion draft to stock his new team, emerges from the first round today to meet the press with a smile. “I don’t see how we can lose with what we got, fellows,” he says before laughing. With each team protecting 29 of their 40 players for the first round and then allowed to protect two more players, the observation is made that the Bengals are getting the 33rd and 34th players on the roster with second- and third-round picks.