I found this today skimming through the news.
"The pair of center backs helps replace the departures of both Alex De John and Kamal Miller and shore up part of the back line."
It seems to me that "helps" and "shore" aren't in agreement in this sentence and should be, however, I can't figure out how to correct it--whether it should be "helps" and "shores," or else "help" and "shore". After googling, (unless I'm mistaken) it appears that only the author could settle this issue because it's a matter of "notional agreement" (meaning it depends upon how the author is viewing the "pair" of center backs) and it's not clear to me from the sentence how the author views "the pair of center backs," whether he sees them in the plural or singular.
Is that correct? Or what is the verdict from the scholars here?
Thanks for any help on this.