TORONTO – MTS Allstream chief corporate officer Chris Peirce is leaving the company effective December 31, 2013.Peirce (pictured) joined MTS Allstream's predecessor AT&T Canada in 1999 as vice-president, government affairs. In roles of successive responsibility and breadth within the organization and as an active leader with industry groups, Peirce made significant contributions to the telecommunications policy landscape in Canada while also playing a leading role in shaping MTS Allstream's position on major issues including the contribution subsidy mechanism, competitor network access, anti-competitive behaviour, wireless spectrum auction rules and foreign investment regulations."Chris has been a key part of the MTS Allstream...