1A Calderbank offer that does not sufficiently spell out the specific grounds on which the offeror ultimately succeeds at trial may not render the offeree's rejection unreasonable, even where the offer contained clues as to those grounds.
2The assessment of whether rejection of a Calderbank offer was unreasonable requires consideration of the state of the evidence and the clarity of the issues as they stood at the date of the offer, not with the benefit of hindsight after trial.
