In Barrick v. Holy Spirit Hospital, 91 A.3d 680 (Pa. 2014), an evenly divided Supreme Court effectively upheld a Superior Court en banc decision recognizing a bright-line rule prohibiting discovery of communications between attorneys and expert witnesses. This decision was followed by the December 15, 2014 formal adoption of a previously proposed amendment to Pa.R.C.P. 4003.5, governing the discovery of expert testimony and trial preparation material. The amendment added the following new subsection (a)(4) to the Rule: