Rob Arnott runs two funds for PIMCO that do tactical asset allocation with decent results
PIMCO All Asset PAAIX http://www.pimco-funds.com/ff_reports/All Asset Fund Institutional.pdf
PIMCO All Asset All Authority (PAUIX) http://www.pimco-funds.com/ff_reports/All Asset All Authority Fund Institutional.pdf
PIMCO All Asset PAAIX http://www.pimco-funds.com/ff_reports/All Asset Fund Institutional.pdf
PIMCO All Asset All Authority (PAUIX) http://www.pimco-funds.com/ff_reports/All Asset All Authority Fund Institutional.pdf