What's the most overall when the executive appointments were 28 and the background was smaller than 37?
CREATE TABLE "siena_college_research_institute_survey" (
  "seq" text,
  "name" text,
  "background" real,
  "party_leadership" real,
  "communication_ability" real,
  "relations_with_congress" real,
  "court_appointments" real,
  "handling_of_economy" real,
  "luck" real,
  "ability_to_compromise" real,
  "willing_to_take_risks" real,
  "executive_appointments" real,
  "overall_ability" real,
  "imagination" real,
  "domestic_accomplishments" real,
  "integrity" real,
  "executive_ability" real,
  "foreign_policy_accomplishments" real,
  "leadership_ability" real,
  "intelligence" real,
  "avoid_crucial_mistakes" real,
  "expert_s_view" real,
  "overall" real
);
SELECT MAX("overall") FROM "siena_college_research_institute_survey" WHERE "executive_appointments"=28 AND "background"<37;