CREATE TABLE "washington_redskins_draft_history" (
  "round" real,
  "pick" real,
  "overall" real,
  "name" text,
  "position" text,
  "college" text
);

Question: What's the average round for the OT position from tulane college with an overall over 38?
SQL: SELECT AVG("round") FROM "washington_redskins_draft_history" WHERE "position"='ot' AND "college"='tulane' AND "overall">38;