Not wholesale, but pilots normally fenced out can climb over the fence, so to speak, one by one. Paragraph 6.

5. For a period of five (5) years beginning with the Bid Period in which the ISL is first implemented, or until the carrier takes delivery of its twenty-fifth (25th) B787 aircraft, whichever occurs sooner, no premerger Continental pilot may be awarded a Captain or First Officer vacancy on a B747 or A350 aircraft or displaced to one and no premerger United pilot may be awarded a Captain or First Officer vacancy on a B787 aircraft or displaced to one.

6. Should there be insufficient bidders from one premerger pilot group for any position in the allocated group of positions under paragraph 5 above, the filling of the position will be governed by the ISL. A pilot thereby awarded a position will, for purposes of processing future displacements under the collective bargaining agreement, be considered as junior to all pilots from the premerger pilot group entitled to the position. Notwithstanding the awarding of positions pursuant to this insufficient bidders provision, the restrictions set out in paragraph 5 above shall continue to apply during the terms specified in paragraph 5 above.