Finally, an agency should conduct postimplementation reviews to determine how well acquisition goals were met and whether the information resources acquired should be added to or replaced.
There are other ways to determine how well acquisition goals were met. 
mnli hypothesis: There are other ways to determine how well acquisition goals were met.  premise: Finally, an agency should conduct postimplementation reviews to determine how well acquisition goals were met and whether the information resources acquired should be added to or replaced.