  We investigate the one-dimensional ferromagnetic Kondo lattice in the
hole-rich region. Of interest to us is the intermediate situation where the
ferromagnetic Kondo coupling (Hund's coupling) is comparable to the electron
bandwidth. The forced alignment favors triplet states whereas singlet states
enter in a quite low-density regime. The direct antiferromagnetic exchange
between the core spins is assumed to still prevail over the double exchange. We
discuss a solvable limit showing that short-range antiferromagnetism in the
spin array will affect the coherent propagation of triplets, i.e., turns a
light triplet onto a heavy singlet, resulting in a heavy electron ground state.
