Originally Posted by watson
Yes and no. It's part hunch, part commonsense.
Engineer averaged 40 runs 40% of the time (4 years out of 10). That doesn't sound a lot until you realise that many of those runs were made after keeping wicket all day then opening the batting.
With the relative luxury of batting at No.7 it doesn't take a whole lot of imagination to work out that Engineer's average may have climbed an extra 7 runs if unburdened with facing the new ball, and hence coincided with Sangakkara's keeping average of 40.
I can accept that logic, often use it myself despite it being deeply entrenched in guesswork