Wilshire Asset Management will assume full responsibility for the four target style mutual funds it manages starting May 31. The Dreyfus-Wilshire Target Funds had been administered and distributed by the Dreyfus network. Wilshire decided to take over the funds because executives were unhappy with the lack of promotion from Dreyfus. A Dreyfus spokeswoman said Dreyfus has similar funds and will, therefore, no longer act as distributor for the Target funds. The four funds - large-cap value, large-cap growth, small-cap value and small-cap growth - will be renamed Wilshire Target Funds. The firm will distribute the funds through several networks, including Schwab's.