[20]
Third, all parties before the Court agree that, if the departmental decision is overturned, arbitrator Osborne’s decision, and hence the new collective agreement, will have no legal effect. The Union alleges that retroactively cancelling the final offer selected by the arbitrator as the new collective agreement will create a reality that is impossible to rectify, plus create chaos for years to come. Canada Post in turn maintains that any harm caused to the Union further to the overturning of a decision by arbitrator Osborne imposing measures pertaining to job security, the retirement plan, insurance coverages for retirees, staff movements and transfers or the annual vacation leave, will obviously be financially compensable and that the issue is premature, which the Union is strongly contesting. Having reviewed the employer’s evidence in that connection (Mr. Mark MacDonell’s affidavit and supporting documents), I nevertheless agree with the Union, specifically Sylvain Lapointe’s testimony. The facts stated in Mr. Sylvain Lapointe’s affidavits and the content of his examination are conclusive. By the very nature of some of the working conditions, not everything is financially compensable. I am of the opinion that restoring the status quo will be practically impossible under the circumstances and that this, in itself, is an irreparable harm (International Brotherhood of Locomotive Engineers v. Cairns, [2000] ACF 112, 252 NR 160 (FCA).