ASTI general secretary, Charlie Lennon has endured the worst three years of his professional life. Remarkably, has survived largely unscathed. Vice-president of Education International, worldwide teachers' trade union. Will he stay with ASTI?

Former president, Bernadine O'Sullivan was a prime mover behind pay campaign. Performed creditably in Senate election. Has a fair number of devoted followers among teachers. But her confrontational style irks others. Unlikely to exchange Christmas cards with Lennon.

Senator Joe O'Toole, the former INTO boss will forever regret likening benchmarking to an ATM machine. Otherwise, played his cards cutely during ASTI campaign. Predicted campaign would end in tears. Now president of ICTU. Unlikely to exchange cards with Bernadine.

ASTI president PJ Sheehy has played a blinder since taking office. Targeted by militants who say he is too close to the Lennon leadership. Unfazed by criticism. Set the agenda at recent convention which helped bring ASTI dispute to an end. Articulate and debonair English teacher.

Popular and gregarious, the ASTI vice-president Pat Cahill was close to Bernadine. Former inter-county footballer for Roscommon and qualified barrister.

Due to be ASTI president next year but not close to leadership. Very good media perfomer. Likely to support TUI merger.

John White, ASTI's deputy general secretary has somehow managed to steer clear of the conflict all around him these past three years.

Polished figure with few enemies. Likes good literature and fine wines. Well-placed to succeed Lennon if a vacancy arises. Supports TUI merger.