Club, Inc., 550 F.2d 505, 511 (2d Cir. 1977). Accordingly, courts must not admit "opinions which would merely tell the jury what result to reach." Hygh v. Jacobs, 961 F.2d 359, 363-64 (2d Cir. 1992) (quoting Fed. R. Evid. 704 advisory committee's note); see also United States v. Duncan, 42 F.3d 97, 101 (2d Ci