43 I am also prepared to assume, without deciding, that a combination of the order suspending case management and the failure of the respondents to raise any positive objection to the appellant's inactivity may have led the appellant reasonably to believe that the respondents acquiesced in the course it was taking. I would not, however, wish it to be understood that, in the general run of cases, a party can simply rely on an opponent's failure to object to delay. In order to object to delay, a party's solicitors must review the file, however briefly, and draft a letter drawing the relevant facts to the attention of the delaying party. That activity comes at a cost. In my view, it is not proper to suggest that a party which has not positively consented to a delay should either incur the legal costs associated with complaining about it, or risk being seen as acquiescing in it. However, as I have noted, I am prepared, for present purposes, to assume that the appellant's solicitors may have, not unreasonably, considered that the respondents acquiesced in the period of delay between 20 June 2006 and 31 March 2008.