CAPT OF A CESSNA CITATION; 550; FAILED TO FOLLOW TWR INSTRUCTIONS WHEN TAXIING IN FROM LNDG BY NOT CONTINUING ON TO THE ASSIGNED TXWY. THIS RESULTED IN TWR INTERVENTION BY HOLDING A B747 WHILE REROUTING RPTR IN FRONT OF THEIR TAXI RTE.

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WE LANDED ON RWY 31L; TWR TOLD US TO TURN R ONTO TXWY N; PROCEED TO TXWY Q TO GA RAMP. THE CAPT EXITED TXWY N FROM THE RWY; BUT MADE A L ONTO TXWY P. I TOLD HIM TO TURN R; HE IGNORED ME. I REPEATED SLIGHT R TO NEXT PARALLEL TXWY Q; BUT HE CONTINUED L AND PROCEEDED W ON TXWY P. GND CTL HAD TO STOP A B747 THAT WAS ON TXWY P EBOUND SHORT OF TXWY PA SO WE COULD EXIT TXWY PA TO TXWY Q. LINKS TO ERROR CHAIN WHICH CAUSED THIS PROB. COMPANY OP MANUAL RECOMMENDS USE OF HEADSETS AND BOOM MIKES. THIS CAPT HAS A HISTORY OF REFUSING TO USING HEADSETS. THIS LACK OF HEADSET (MINE WAS BEING WORN) MAKES COMS VERY DIFFICULT AT BEST. ACFT WE WERE FLYING HAS EXCELLENT INTERPHONE SYS. OUR CHIEF PLT DOES NOT BELIEVE IN THE SENIOR CAPT BEING THE PERSON IN COMMAND. WHATEVER FLC MEMBER HE ASSIGNS ON THE SCHEDULE AS CAPT IS IN COMMAND REGARDLESS OF SENIORITY OR TIME. WE CALL IT MUSICAL CAPTS. THIS CONCEPT LEADS TO A SENSE OF CONFUSION IN THE COCKPIT DURING TIMES OF EMERS OR WHEN QUICK ACTION IS NEEDED. I AM NOW FLYING FO WITH PEOPLE 15 YRS MY JUNIOR AND WHO I HELPED TRAIN WHEN THEY FIRST CAME WITH US. LACK OF POSITIVE ACTION ON MY PART; NEXT TIME I WILL JAM ON THE BRAKES AND HOLD THEM UNTIL THINGS ARE CLRED. SWITCH OF RWYS ON FINAL; CAPT NOT FAMILIAR WITH TURNOFFS. EMOTIONALLY STRESSED BECAUSE OF MASSIVE CHANGES WITHIN OUR FLT DEPT; BROUGHT ON BY A VERY DEMANDING CHIEF PLT. THIS CAPT IS ALWAYS IN A HURRY.