Tactics, analysis and recruitment are among the factors being assessed as Everton look to make progress with the handling of set pieces.
The club's vulnerability to corners and free kicks was repeatedly exposed throughout last season. That largely improved following the arrival of Frank Lampard and his coaching team - at least until the final game of the season, by which time the Blues had guaranteed Premier League safety. But concerns remain, with the Blues conceding from corners in two of their three pre-season friendlies.
Staff hope the signing of James Tarkowski will be a key factor while the increased presence of Dominic Calvert-Lewin and Yerry Mina, both of whom missed large portions of last season to injury, could also help as Lampard seeks a boost in both boxes.
