We were awful at throw-ins under Pellegrini, constantly let our players get marked before taking them. And let opposition take theirs freely half the time. A minor thing, but used to annoy the heck out of me.
I remember watching Bayern under Pep against Atletico & thinking the pace at which they played, in every aspect including throw-ins was incredibly hard to deal with - then thinking how these little things add up to making a reasonable difference; however last season I didn't see much change.
Hope you're right & we can keep that pace up for the season.