The degree to which you find common ground is a normative question. Parties divide people—they always have—and there is a model in which we say we want a democracy in which a smallish number of parties compete for power on relatively clear platforms and with a leader at the head. They are then put into Parliament, and they're given, often, extraordinary power to implement those policies, and then those policies are judged by the voters.
Mr. Cullen is certainly right, for example, that we've had good policy, even bold policy, in minority governments, but we've also had majority governments that have been able to move to the centre and have been able to take on pretty bold policies, knowing that they would have enough time to then put them before the electors.
I think about Mr. Mulroney and the HST, and free trade, which he put before the electors. I think about Mr. Chrétien's deficit-cutting policies through the 1990s, which required political courage, certainly.
My sense is that we have seen minority situations in which we've had good government and we have seen majority situations in which we've had good government. We don't have a lack of political courage or change in this country. In fact, our parties have often almost drastically changed direction. Whether that is normatively good or not is another thing you have to decide on.
What's clear in all of this is that we've created a system that has incentives for parties to build broad coalitions before elections. By my reading, it's held together a country that's relatively improbable.