Complex sentence: In the 2009 summer Casquilha was appointed at Moreirense F.C. in the third tier, achieving promotions in 2010 and 2012, the latter signifying a return to the top division after a an absence of seven years.
Split into simpler sentences: In the 2009 summer, Casquilha was appointed at Moreirense F.C. in the third tier. He achieved promotions in 2010 and 2012, the latter signifying a return to the top division after a an absence of seven years.