What to write in a paper about USA's involvement in WWI?

How about writing about how once the US Expeditionary Force reached Europe many of it's senior officers wanted to largely ignore the potential contributions of Americans who had been volunteering in the war long before the US got involved? One of the biggest examples were the men of the Lafayette Escardrille. Men like William Thaw and Raoul Lufbery had a lot of combat experience they could have ped on to the new American pilots. But the senior officers wanted to initially ignore these men because they supposedly knew better. Heck they even put them through physical examines that had absolutely nothing to do with whether or not a man could preform well in aerial combat, the same tests they used to choose canidates. Eventually they did use these men, in fact Eddie Richenbacker, the US's top ace of the war, credited Lufbery with teaching him everything he knew. But things might have been considerably different if they'd turned to them early on.