Deutsche Banl previews Fed Warsh speech at Jackson Hole on Friday.

"Warsh's Jackson Hole speech provides a timely opportunity for the Fed's new leader to clarify his vision for the central bank, either through a "big picture" talk focused on the task forces or through a policy-relevant discourse that cleans up some missteps in recent communications and presents scenarios for the outlook," DB notes.

"Given his overall inclination to provide limited information about the policy outlook, we think his comments will most likely skew to the former, though we will be attentive to any additional signals on the latter," DB adds.