Britain's system is working (is it really?)
The British constitution is far from perfect—none are. And plenty of written constitutions function well. The British constitution was not flexible enough to stop the country from breaking apart in 1922 when the Republic of Ireland seceded. It may not be adaptable enough—or restrictive enough—to keep either Scotland or Northern Ireland in the Union either. Its electoral system might create a strong government from time to time, but it also creates problems of representation. More recently, the constitution has produced a string of governments that have not been very successful... More here.
This article has left me perplexed. One sentence I think it's brilliant and in the next I am thinking it's utter tosh.