A321
Flight Crew Air Transport Pilot (ATP)
Training / Qualification; Workload; Communication Breakdown; Confusion; Human-Machine Interface; Situational Awareness
ATC Issue All Types; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance; Flight Deck / Cabin / Aircraft Event Other / Unknown
General None Reported / Taken
Chart Or Publication; Company Policy; Human Factors; Procedure
Descending via the Ivane arrival. FO was pilot flying and handling comms while I was performing ECAM.Atlanta vectored us off the arrival and imposed new altitude and speed restrictions. FO experienced mode reversion to V/S and was slow to resume descent. ATC asked if we were descending. FO remarked that he might have been a little high on the crossing restriction.Task saturation and being low time. First trip as Captain. FO new hire. I was not monitoring effectively while performing the ECAM. I should have held the ECAM until I was satisfied that all restrictions would be complied with by the PF. I will try and listen harder to ATC if I am off performing ECAM actions while PNF. I will try and monitor more effectively while PNF.Multiple vectors; runway changes; and added crossing restrictions and modifications to arrival.  We were probably both task saturated.
An A321 flight crew consisting of a new hire First Officer and a Captain on his first flight in command failed to make a required crossing while descending via the IVANE RNAV arrival to CLT. Multiple interruptions of the STAR by ATC and a loss or autoflight mode awareness were cited as contributing factors.