Commercial Fixed Wing
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Distraction; Confusion; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Provided Assistance; Flight Crew Returned To Clearance
Environment - Non Weather Related; Human Factors
Climbing out of ZZZ on the ZZZZZ TWO on our flight plan.  After a short delay ATC cleared us direct to the ZZZZZ1 Intersection followed by the ZZZZZ2 and ZZZZZ3 intersections which are on the ZZZZZ2 THREE departure.During the departure briefing both the FO identified our lack of recency experience as a threat. When the clearance was sent to the FMC with the new routing the FO was not aware of the LOAD FMC prompt so the new routing was never loaded. When I reviewed the print out of the PDC clearance I remember being confused by the clearance.I should of voiced my concern to the FO when I did not understand the clearance. Unfortunately; I got distracted and never resolved the discrepancy. There's no substitute for diligence when it comes to the route check.
Air carrier Captain reported a track heading deviation.  Captain stated when the clearance was sent to the FMC with the new routing the FO was not aware of the LOAD FMC prompt so the new routing was never loaded.