In a complex multi-defendant conspiracy case, in what circumstances will the jury be able to consider each defendant separately?

In reviewing a similarly complex multi-defendant conspiracy case we commented that "in a trial of this dimension, each juror is faced with a difficult task in compartmentalizing the evidence with regard to each particular defendant and keeping clearly in mind the full circumstances of each transaction." United States v. Agueci, 310 F.2d 817, 829, 99 A.L.R.2d 478 (2 Cir. 1962), cert. denied, 372 U.S. 959, 83 S.Ct. 1013, 10 L.Ed.2d 11 (1963). Here, as there, the trial judge "patiently and capably" discharged the "burden of impressing upon the jury the need for judging each defendant separately" so that "justice might be meted out to the individual rather than to the group." Ibid.