Wiktionary
retooling
n. The fact or process of re-equipping or modifying something. vb. (present participle of retool English)
Usage examples of "retooling".
With all that shit breaking loose, a lot of buildings were retooling to cope.
In that latter event his demands could be excessive, and if rejected, the cost of retooling and loss of supply would plunge many of the firms into disastrous financial territory.