SAC Trader Seeks Access To Some Witnesses In SEC Civil Case – Law Blog – WSJ

In parallel proceedings, the civil case is frequently stayed pending the outcome of the criminal case.  Sometimes, the stay can significantly hamper the trial preparation of a defendant in the criminal proceeding (for example, by restricting access to cooperating witnesses).    SAC Trader Seeks Access To Some Witnesses In SEC Civil Case – Law Blog – WSJ

How does the court best balance these principles?